Spanish 2 Quiz: Affirmative And Negative Commands
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Affirmative And Negative CommandsQuestion 1 of 10

A Spanish tutor is correcting a student's written homework. The student wrote the following instruction for a recipe: "No hablas mientras comes." The tutor says this sentence is grammatically correct but does NOT function as a negative command.

Why is the tutor correct, and which revision would properly express a negative tú command meaning 'Don't talk while you eat'?

The original uses the indicative mood rather than the subjunctive stem; the correct negative tú command form is 'No hables mientras comes.'
The original uses the indicative mood rather than the imperative stem; the correct negative tú command form is 'No hable mientras comes.'
The original is already a valid negative tú command because present-tense indicative doubles as imperative in informal speech; no revision is needed.
The original uses the wrong pronoun register; the correct negative tú command form is 'No habléis mientras coméis.'
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Spanish 2 Quiz

Spanish 2 Quiz: Affirmative And Negative Commands

Practice Affirmative And Negative Commands in Spanish 2 with focused quiz questions that help you check what you know, review explanations, and build confidence with test-style prompts.

What this quiz covers

This quiz focuses on Affirmative And Negative Commands, giving you a quick way to practice the rules, question types, and explanations that matter most for Spanish 2.

How to use this quiz

Try each quiz question before looking at the correct answer. Use the explanations to review missed ideas, then come back to similar questions until the pattern feels familiar.

All questions

Question 1

A Spanish tutor is correcting a student's written homework. The student wrote the following instruction for a recipe: "No hablas mientras comes." The tutor says this sentence is grammatically correct but does NOT function as a negative command.

Why is the tutor correct, and which revision would properly express a negative tú command meaning 'Don't talk while you eat'?

  1. The original uses the indicative mood rather than the subjunctive stem; the correct negative tú command form is 'No hables mientras comes.' (correct answer)
  2. The original uses the indicative mood rather than the imperative stem; the correct negative tú command form is 'No hable mientras comes.'
  3. The original is already a valid negative tú command because present-tense indicative doubles as imperative in informal speech; no revision is needed.
  4. The original uses the wrong pronoun register; the correct negative tú command form is 'No habléis mientras coméis.'
Explanation: When forming negative tú commands in Spanish, you cannot simply drop "no" in front of the present-tense indicative form. Instead, negative tú commands require the present subjunctive form of the verb, which is built from the yo-form stem. For hablar, the yo form is hablo, so the subjunctive stem is habl-, giving you hables for tú. The correct negative tú command is therefore "No hables mientras comes" — confirming that A is correct. The original sentence "No hablas mientras comes" is grammatically fine as a declarative statement ("You don't talk while you eat"), but it uses the indicative mood, which cannot function as a command. Choice B is tempting because it acknowledges the indicative problem, but its proposed fix — No hable — is the negative usted command, not tú. Mixing up tú and usted forms is a classic trap, so always check the pronoun register your question is targeting. Choice C is a dangerous misconception: while positive tú commands sometimes overlap with indicative forms (e.g., habla can be a command), negative tú commands never use the indicative — the subjunctive is always required. Choice D introduces habléis and coméis, which are vosotros forms used in Spain for a plural "you," making this the wrong register entirely for a singular tú command. A handy study tip: remember the acronym ANDES (or the "go-verb" trick) for subjunctive formation — take the yo form, drop the -o, and add opposite-vowel endings. For negative tú commands specifically, always ask yourself: "Did I switch to the subjunctive?" If not, it's not a command.

Question 2

A teacher instructs her class in a formal workshop, addressing each student with usted. She wants to say 'Sit down, open your books, and don't use your phones.' Which sequence of usted commands is entirely correct?

  1. 'Siéntese, abre sus libros, y no use su teléfono.' — 'siéntese' and 'no use' are correct usted forms, but 'abre' is an acceptable alternative imperative derived from the infinitive stem for -ir verbs when addressing usted.
  2. 'Siéntase, abra sus libros, y no use su teléfono.' — 'siéntase' uses the alternate reflexive suffix '-ase' attached to the command stem, 'abra' is the correct subjunctive stem, and 'no use' correctly negates the command.
  3. 'Siéntese, abra sus libros, y no usa su teléfono.' — the first two forms are correct usted commands, but 'no usa' uses the present indicative as an emphatic prohibition acceptable in formal registers.
  4. 'Siéntese, abra sus libros, y no use su teléfono.' — all three forms correctly use the present-subjunctive stem with the usted ending, and the reflexive pronoun 'se' is appended to the affirmative reflexive command. (correct answer)
Explanation: When forming usted commands in Spanish, the key rule is simple: use the present subjunctive form of the verb. For most verbs, you take the yo present-indicative form, drop the -o, and add the "opposite" vowel ending — -e for -ar verbs, -a for -er/-ir verbs. For reflexive commands, the pronoun se attaches directly to affirmative commands but precedes negative ones. Answer D is entirely correct. Siéntese comes from sentarse: the yo form is siento → stem sient- → add -e → siente, then attach se = siéntese ✓. Abra comes from abrir: yo form abro → stem abr- → add -a = abra ✓. No use correctly places no before the subjunctive form of usar (use) ✓. Every form follows the subjunctive-stem rule, making D the only fully correct sequence. Answer A fails because abre is the tú command form, not the usted form. The usted command for abrir must be abra, not abre. Answer B uses siéntase instead of siéntese. The correct usted subjunctive ending for -ar verbs is -e, so the reflexive command becomes siéntese, not siéntase — there is no "-ase" variant in standard Spanish. Answer C correctly forms siéntese and abra, but no usa is the present indicative, not a command form. Negative usted commands always require the subjunctive, so it must be no use. Your study tip: memorize the pattern yo-drop + opposite vowel for usted commands, and remember that negative commands always use the subjunctive — never the indicative.

Question 3

A student must rewrite the following affirmative tú command as a negative tú command while keeping the indirect-object pronoun: 'Díselo a tu hermano.' Which transformation is correct, and what grammatical adjustment is required?

  1. 'No díselo a tu hermano.' — the pronouns remain attached in the negative command as in the affirmative, but 'di' becomes 'dí' with an accent to signal the negative imperative mood.
  2. 'No lo dises a tu hermano.' — in the negative command, only the direct-object pronoun precedes the verb, the indirect-object pronoun is dropped, and 'dises' is the negative tú form of 'decir.'
  3. 'No se lo digas a tu hermano.' — in the negative command, the pronouns detach from the verb and precede it in the order indirect–direct (se, lo), and 'digas' replaces 'di' as the negative tú command of 'decir.' (correct answer)
  4. 'No te lo digas a tu hermano.' — in the negative command, the indirect-object pronoun 'le' always changes to 'te' when preceding a direct-object pronoun, and 'digas' is the correct negative tú command of 'decir.'
Explanation: When you see a question involving tú commands with object pronouns, you need to track two things simultaneously: where the pronouns go (attached vs. detached) and which verb form to use (affirmative vs. negative imperative). Here's the core rule: in affirmative tú commands, object pronouns attach to the end of the verb ("Díselo"). In negative tú commands, pronouns detach and move in front of the verb. Also, the negative tú command uses the present subjunctive form, not the short imperative. For decir, the affirmative tú command is the irregular "di," but the negative tú command is "no digas" (present subjunctive). Additionally, when two object pronouns appear together and both begin with an l- sound (le + lo), the indirect-object pronoun le changes to se to avoid awkward repetition. So "no le lo digas" becomes "no se lo digas." Answer C captures all of this correctly: pronouns detach, appear in indirect–direct order (se, lo), and the verb becomes digas. Answer A fails on two counts: pronouns cannot remain attached in a negative command, and there is no accent-based "negative imperative" — that concept doesn't exist in Spanish grammar. Answer B is wrong because it drops the indirect-object pronoun entirely, invents the non-existent form dises, and doesn't apply the subjunctive for the negative command. Answer D has the right verb form (digas) but incorrectly changes se to te. The pronoun te is second-person, whereas le/se is third-person — the recipient here is tu hermano, not "you." Study tip: Remember the acronym ADVAN — in Affirmative commands, pronouns are Attached; in Negative commands, they move in front. Pair this with the le→se rule and you'll handle most pronoun-command questions with confidence.

Question 4

A language-exchange partner texts: 'Mi mamá siempre me dice: «Sé bueno, ten paciencia, y no seas impaciente.»'

Which analysis of the three command forms in the quoted speech is most accurate?

  1. 'Sé' is an irregular affirmative tú command from 'ser'; 'ten' is the regular affirmative tú command from 'tener' formed by the standard third-person-singular rule; and 'no seas' is the negative usted command from 'ser' used here as a polite intensifier.
  2. 'Sé' is an irregular affirmative tú command from 'saber'; 'ten' is an irregular affirmative tú command from 'tener'; and 'no seas' is the negative tú command from 'ser,' so the sentence uses two different verbs that can both be translated as 'to be.'
  3. 'Sé' is an irregular affirmative tú command from 'ser'; 'ten' is an irregular affirmative tú command from 'tener'; and 'no seas' is the negative tú command from 'ser' using the present subjunctive, making 'sé' and 'no seas' derived from the same verb. (correct answer)
  4. 'Sé' is the regular affirmative tú command from 'ser' formed by simply dropping the infinitive ending; 'ten' is an irregular affirmative tú command from 'tener'; and 'no seas' is the correct negative tú command from 'ser.'
Explanation: When analyzing command forms in Spanish, you need to ask three questions for each verb: Is it tú or usted? Is it affirmative or negative? And is it regular or irregular? The sentence has a mother speaking directly to her child, so all three commands are informal tú commands. Affirmative tú commands typically use the third-person singular present indicative, but several verbs have memorized irregular forms. Negative tú commands always use the present subjunctive. Answer C is correct. "Sé" is one of eight classic irregular affirmative tú commands — memorized as a one-syllable form from ser (not derived by any rule). "Ten" is likewise an irregular affirmative tú command from tener (its regular form would be tiene). "No seas" is the negative tú command, built from the present subjunctive of ser (sea, seas, sea…). Crucially, both "sé" and "no seas" come from ser, just through entirely different formation processes — that's the key insight C captures. Answer A fails on two counts: it misidentifies "no seas" as a usted command (the usted negative command would also be "no sea," not "no seas") and invents a nonexistent "polite intensifier" function. Answer B correctly identifies "ten" but wrongly claims "sé" comes from saber — saber's irregular tú command is also "sé," which is a real ambiguity, but context here clearly means ser ("be good"). Answer D calls "sé" a regular command, which is wrong — ser doesn't follow the standard third-person-singular rule. Your study tip: memorize the eight irregular affirmative tú commands (di, haz, ve, pon, sal, sé, ten, ven) and remember that ALL negative tú commands use the present subjunctive — no exceptions.

Question 5

A doctor is giving discharge instructions to a patient (usted). She wants to say: 'Take this pill every morning, and don't drink alcohol.' Which sentence correctly uses BOTH an affirmative and a negative usted command?

  1. 'Tome esta pastilla cada mañana y no beba alcohol.' — both verbs correctly use the present-subjunctive stem for usted commands. (correct answer)
  2. 'Toma esta pastilla cada mañana y no beba alcohol.' — the affirmative uses the tú form as a neutral imperative, and the negative uses the correct usted subjunctive stem.
  3. 'Tome esta pastilla cada mañana y no bebe alcohol.' — the affirmative correctly uses the subjunctive stem, and the negative uses the indicative as an emphatic prohibition.
  4. 'Toma esta pastilla cada mañana y no bebes alcohol.' — both verbs use the tú present-indicative, which serves as a polite usted command in medical contexts.
Explanation: When forming usted commands in Spanish, you need to remember one core rule: both affirmative and negative usted commands use the present subjunctive stem — the opposite vowel ending from the infinitive. For -AR verbs, use -e; for -ER/-IR verbs, use -a. So tomar → tome, and beber → beba. This applies whether the command is affirmative ("do this") or negative ("don't do this"). Answer A — "Tome esta pastilla cada mañana y no beba alcohol" — is correct precisely because both verbs follow this rule. Tome is the affirmative usted command for tomar, and beba is the negative usted command for beber. The doctor is speaking formally to her patient, so usted commands are required throughout. Answer B uses toma, which is actually the tú command form, not an usted form. Mixing a tú command with an usted command (beba) creates an inconsistent register — there's no "neutral imperative" shortcut in formal Spanish. Answer C gets the affirmative right (tome), but no bebe uses the present indicative, not the subjunctive. In Spanish, negative commands always require the subjunctive — you cannot substitute the indicative as an "emphatic" alternative. Answer D uses toma and no bebes, both present indicative tú forms. This is completely wrong for usted commands and doesn't become polite in medical contexts — register is determined by verb form, not situation. Study tip: Memorize the usted command pattern as "switch the vowel": -AR verbs end in -e, -ER/-IR verbs end in -a, for BOTH affirmative and negative commands, always.

Question 6

A student reads the following advice column excerpt: 'Para reducir el estrés, señor Gómez: duerma ocho horas, no se preocupe por cosas pequeñas, y vaya al gimnasio tres veces por semana.'

The student must identify which verb in the excerpt presents the most grammatically complex command form and explain why. Which answer is correct?

  1. 'Duerma' is the most complex because 'dormir' is an o→ue stem-changing verb in the present subjunctive, and applying that stem change to form the usted command makes it harder than verbs like 'usar' that follow the regular yo-form derivation without any vowel alternation.
  2. 'Vaya' is the most complex because 'ir' has a completely irregular present subjunctive (vaya, vayas, vaya…) that cannot be derived from the yo-form rule used for most verbs, making it impossible to predict through standard formation patterns, unlike 'duerma,' which follows the systematic o→ue stem change. (correct answer)
  3. 'No se preocupe' is the most complex because it combines a negative command with a reflexive pronoun that must precede the verb, and 'preocupar' requires a spelling change from 'p' to 'qu' before the subjunctive ending to preserve the consonant sound.
  4. 'Duerma' is the most complex because 'dormir' undergoes a stem change in every form of the present subjunctive, meaning the usted command cannot share any overlap with the infinitive stem, whereas 'ir' and 'preocupar' retain recognizable portions of their infinitive in the subjunctive.
Explanation: When evaluating command complexity in Spanish, you need to think about predictability — can you derive the command form using standard rules, or does the verb break the system entirely? For usted commands, the standard rule is: take the yo-form of the present tense, drop the -o, and add the opposite vowel ending. Most verbs, even irregular ones, follow this pattern. The verb ir, however, is one of a small group of completely irregular verbs whose present subjunctive — and therefore whose formal command — cannot be derived this way at all. Vaya comes from a suppletive, memorized paradigm (vaya, vayas, vaya, vayamos, vayáis, vayan) with no connection to a predictable yo-form. This makes B correct: vaya represents the highest level of irregularity because no rule generates it — you simply must memorize it. A is tempting but overstates dormir's difficulty. Duerma does involve an o→ue stem change, but that change is systematic — it follows the same pattern as poder → pueda, volver → vuelva, etc. Irregular, yes; unpredictable, no. The yo-form rule still applies here. C contains a factual error that should alert you immediately: preocupar does not require a spelling change. The p→qu spelling change applies to verbs ending in -car (like buscar → busque). Preocupar ends in -par, so no such change occurs. D is incorrect because it mischaracterizes ir — vaya actually retains no recognizable portion of the infinitive either, undermining the contrast the answer tries to draw. Study tip: Memorize the "DISHES" verbs (Dar, Ir, Saber, Haber, Estar, Ser) — these have completely irregular subjunctive/command forms that no rule can generate for you.

Question 7

A Spanish student is asked to give a tú command for each of the following verbs: 'ir,' 'hacer,' and 'ser.' The student produces: 'Ve, haz, sé.' A classmate argues that 've' is wrong because it conflicts with the tú command of 'ver.' Which response most accurately resolves the dispute?

  1. Both 'ir' and 'ver' produce 've' as their affirmative tú command, creating a homophone pair; context disambiguates meaning, but both forms are grammatically correct as stated, so the original student's answer is valid for 'ir.' (correct answer)
  2. The classmate is correct: to avoid ambiguity, the affirmative tú command of 'ir' is 'anda' in standard modern usage, while 've' is reserved exclusively for the tú command of 'ver,' so the student should replace 've' with 'anda.'
  3. The classmate is partially correct: 've' is the tú command of 'ver,' so the tú command of 'ir' must use the subjunctive form 'vayas' as an affirmative command to avoid the homophone conflict, while 'haz' and 'sé' remain correct.
  4. The student is wrong for a different reason: 've' is not the tú command of 'ir' at all; the correct irregular affirmative tú command of 'ir' is 'vi,' while 've' belongs only to 'ver,' so the entire first command must be replaced.
Explanation: When studying irregular tú commands in Spanish, you need to recognize that the language sometimes produces homophones — identical forms that belong to different verbs. This question tests whether you understand that grammatical correctness and ambiguity are separate issues. The eight classic irregular affirmative tú commands (often memorized as "Di Ven Di Sal Haz Ten Ve Pon" or "VeDiHazSalTenPonSéVen") include ve for ir. Separately, ver also forms its affirmative tú command as ve. Both are legitimate, standard forms — neither is incorrect. When a speaker says "¡Ve!" meaning "Go!", context (situation, topic, surrounding sentence) makes the meaning clear, just as English "bear" and "bare" coexist without problems. So the original student's answer — ve, haz, sé — is perfectly valid for ir, making A the correct answer. Answer B is wrong because anda is informal/colloquial and is not the standard replacement for the tú command of ir. No authority requires replacing ve with anda to avoid ambiguity. Answer C is wrong on two counts: it misidentifies ve as belonging exclusively to ver, and it incorrectly suggests using the subjunctive vayas as an affirmative command — subjunctive forms serve as negative tú commands, not affirmative ones. Answer D is simply invented; vi does not exist as any command form in Spanish and represents a false "correction." As a study tip: memorize the eight irregular affirmative tú commands as a fixed list, and remember that homophones across verbs are a normal feature of Spanish — context resolves them, not invented alternate forms.

Question 8

A parent is texting quick reminders to a teenager. The parent types: 'Pon la mesa, sal a caminar, y no te vayas sin comer.'

Which of the following correctly identifies the command forms used and explains why they are appropriate for this context?

  1. 'Pon' and 'sal' are irregular affirmative tú commands, and 'vayas' is an irregular negative tú command derived from the present-subjunctive of 'ir'; all three are appropriate for addressing a family member informally. (correct answer)
  2. 'Pon' and 'sal' are irregular affirmative usted commands used colloquially, and 'vayas' is the regular negative tú command of 'ir' formed by dropping the infinitive ending; the register is mixed but acceptable in texting.
  3. 'Pon' and 'sal' are irregular affirmative tú commands, and 'vayas' is the regular present-subjunctive tú form of 'ir' that happens to look irregular only because 'ir' is a stem-changing verb in the e→i pattern.
  4. 'Pon' is an irregular affirmative tú command, but 'sal' is a regular affirmative tú command formed by dropping the -ir ending, and 'vayas' is the negative usted command of 'ir' used here for extra formality within the family.
Explanation: When a question asks you to identify command forms and their register, your job is to check two things: (1) is the form irregular or regular, and (2) does the register match the social relationship described? In Spanish, the affirmative tú commands for several common verbs are famously irregular — they don't follow the pattern of using the third-person singular present. "Pon" (from poner) and "sal" (from salir) are two of the "DISHES" verbs (Di, Id/Ve, Sal, Haz, Pon, Ten, Ven, Sé), meaning their affirmative tú commands must simply be memorized. For negative tú commands, Spanish uses the present subjunctive — and "vayas" is exactly that: the present subjunctive of ir (voy → vay- + -as = vayas), which is irregular because ir has an irregular subjunctive stem. Since a parent texting a teenager is an informal family relationship, the tú register is completely appropriate throughout. This makes A the correct answer. B is wrong because "pon" and "sal" are definitely not usted commands — the usted affirmative commands would be "ponga" and "salga." The premise is false from the start. C is wrong because it misidentifies ir as a stem-changing e→i verb. Ir is not a stem-changer; its subjunctive form "vayas" is irregular due to a completely different, suppletive root (vad-/vay-), not a predictable pattern. D is wrong on two counts: "sal" is not regular (regular -ir commands just use the third-person singular, which would be "sale"), and "vayas" is a tú command, not a usted command. Your study tip: memorize the eight irregular affirmative tú commands using "DISHES VT" (Di, Id, Sal, Haz, Pon, Sé, Ven, Ten) — they appear constantly on exams exactly because students expect regularity where there is none.

Question 9

A Spanish instructor wants students to practice attaching direct-object pronouns to affirmative commands. Which sentence correctly transforms 'Escribe la carta' (tú command) into a command with an attached direct-object pronoun, AND correctly places a written accent where required?

  1. 'Escríbela' — the pronoun 'la' is attached to the command, and a written accent is added to 'i' because all commands with attached pronouns must accent the second vowel of the verb stem regardless of syllable count.
  2. 'Escríbela' — the pronoun 'la' is attached to the command, and a written accent is added to 'i' to preserve the original stress on the antepenultimate syllable of the new four-syllable word. (correct answer)
  3. 'Escribela' — the pronoun 'la' is attached to the command, and no accent mark is needed because the natural stress already falls on the correct syllable by the standard rules of Spanish accentuation.
  4. 'La escribe' — the pronoun precedes the verb and the verb shifts to present indicative, following the standard rule for pronoun placement with affirmative tú commands.
Explanation: When you attach a direct-object pronoun to an affirmative command in Spanish, you're creating a new, longer word — and that changes where stress naturally falls. Your job is to make sure the stress stays on the same syllable it was on in the original command. Take Escribe (the tú command of escribir). The stress falls on the second syllable: es-CRI-be. When you attach la, you get a four-syllable word: es-cri-be-la. By default Spanish stress rules, words ending in a vowel stress the second-to-last syllable — that would shift stress to be, giving you es-cri-BE-la. That's wrong; it changes the meaning and pronunciation of the original verb. To lock the stress back onto cri, you must add a written accent: es-crí-be-la → Escríbela. The accent preserves the antepenultimate (third-from-last) syllable stress, which is exactly what B describes. Choice A is tempting because it spells the word correctly, but the reasoning is fabricated — there is no rule that "all commands with attached pronouns accent the second vowel of the verb stem regardless of syllable count." The accent is about syllable count and preserving original stress, not a blanket positional rule. Choice C is incorrect because escribela without an accent would, by standard rules, be stressed on be — the wrong syllable. The natural stress rules do NOT produce the correct result here, so an accent is required. Choice D is simply backwards. With affirmative tú commands, pronouns attach to the end of the verb — they never precede it. Study tip: Whenever you attach one or more pronouns to a command, count the syllables of the new word and ask where stress would land by default. If that differs from the original verb's stress, add a written accent to preserve it.

Question 10

A fitness coach is writing a bilingual workout guide. For the English instruction 'Don't do more than 20 repetitions,' the coach drafts the Spanish: 'No hagas más de 20 repeticiones.' A colleague suggests changing it to 'No haces más de 20 repeticiones.'

Which statement best evaluates both versions and explains the grammatical distinction?

  1. The coach's version is incorrect: 'hagas' is the present-subjunctive of 'hacer' but applies only to usted commands; the correct negative tú command would be 'No haga más de 20 repeticiones.'
  2. Both versions are equally valid: 'No hagas' uses the subjunctive for a formal prohibition, while 'No haces' uses the indicative for an informal prohibition, and either register is acceptable in a workout guide.
  3. The colleague's version is preferable: 'No haces' functions as a softened negative command in the present indicative, which is more natural in instructional writing than the subjunctive form 'No hagas.'
  4. The coach's version is correct: 'No hagas' is the negative tú command using the present-subjunctive of 'hacer,' while 'No haces' is an indicative statement of fact, not a command, making the colleague's suggestion grammatically inappropriate for an instruction. (correct answer)
Explanation: When a question asks you to evaluate Spanish command forms, your first move should be to identify the grammatical mood required. In Spanish, negative tú commands always use the present subjunctive, never the indicative — this is a firm rule with no exceptions. For hacer, the present subjunctive tú form is hagas, so "No hagas más de 20 repeticiones" is a genuine negative command meaning "Don't do more than 20 repetitions." This is exactly what a workout instruction requires. The coach's version is correct, and D is the right answer. Now let's dismantle the wrong choices. A contains a factual error: hagas is not reserved for usted commands. The usted negative command would actually be "No haga" (dropping the -s). Hagas is specifically the tú subjunctive form, which is precisely what negative tú commands require. B is tempting but fundamentally wrong. "No haces" is not an "informal prohibition" — it's a declarative statement in the indicative mood meaning "You don't do more than 20 repetitions." Saying someone doesn't do something is very different from telling them not to do it. The two versions are not interchangeable. C makes the same error as B, dressing up a grammatical mistake as a stylistic preference. "Softened negative command in the present indicative" is not a real grammatical category in Spanish — this is invented justification for an incorrect form. Your study tip: memorize the pattern "No + [present subjunctive]" for all negative tú commands. When you see an indicative form after no where a command is needed, that's always a red flag.