Spanish 1 Quiz: Editing For Agreement And Verb Endings
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Editing For Agreement And Verb EndingsQuestion 1 of 10

A student wrote the following sentence about her friends: "Ellas son unas chicas muy trabajador y simpático."

Which correction best fixes the agreement errors in the adjectives?

Change "trabajador" to "trabajadoras" and "simpático" to "simpáticas" so both adjectives agree with the feminine plural subject
Change "trabajador" to "trabajadores" and "simpático" to "simpáticos" so both adjectives take the masculine plural form as the default
Change only "simpático" to "simpática" because adjectives that end in -o must agree in gender, while adjectives ending in a consonant like "trabajador" are already invariable
Change "unas chicas" to "unos chicos" so the noun phrase becomes masculine and matches the unchanged adjectives "trabajador" and "simpático"
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Spanish 1 Quiz

Spanish 1 Quiz: Editing For Agreement And Verb Endings

Practice Editing For Agreement And Verb Endings in Spanish 1 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 Editing For Agreement And Verb Endings, giving you a quick way to practice the rules, question types, and explanations that matter most for Spanish 1.

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 student wrote the following sentence about her friends: "Ellas son unas chicas muy trabajador y simpático."

Which correction best fixes the agreement errors in the adjectives?

  1. Change "trabajador" to "trabajadoras" and "simpático" to "simpáticas" so both adjectives agree with the feminine plural subject (correct answer)
  2. Change "trabajador" to "trabajadores" and "simpático" to "simpáticos" so both adjectives take the masculine plural form as the default
  3. Change only "simpático" to "simpática" because adjectives that end in -o must agree in gender, while adjectives ending in a consonant like "trabajador" are already invariable
  4. Change "unas chicas" to "unos chicos" so the noun phrase becomes masculine and matches the unchanged adjectives "trabajador" and "simpático"
Explanation: When a question asks you to fix adjective agreement in Spanish, your first move is to identify the gender and number of the subject, then check whether every adjective matches both of those features. Here, the subject is ellas — a feminine, plural pronoun referring to unas chicas. That means every adjective describing them must be feminine AND plural. Looking at the original sentence, trabajador is masculine singular and simpático is masculine singular, so both need to be corrected. The proper feminine plural forms are trabajadoras and simpáticas, making A the correct answer — it fixes both errors consistently and logically. B is wrong because it applies masculine plural endings (trabajadores, simpáticos). Masculine plural is only used as a "default" when a group contains mixed genders, but here the subject is explicitly all female (ellas, chicas), so masculine forms are incorrect. C contains a very common misconception: that adjectives ending in a consonant (like -or) are invariable and don't change for gender. This is false. Adjectives ending in -or do change — they add -a for feminine singular and -as for feminine plural. So trabajador absolutely must become trabajadoras here; leaving it unchanged is an error. D avoids fixing the adjectives altogether by changing the noun instead. This is backwards thinking — you adjust adjectives to match the subject, not the other way around, especially when the subject is already established in context. Study tip: For any adjective in Spanish, always ask two questions: What gender? and What number? Both must match the noun every time, no exceptions for consonant endings.

Question 2

A student wrote the following sentence in a composition: "Mis hermanos es muy inteligentes y trabajan mucho."

Which change is needed to make the sentence grammatically correct?

  1. Change "es" to "son" so the verb agrees with the plural subject "mis hermanos" (correct answer)
  2. Change "inteligentes" to "inteligente" so the adjective stays in its base singular form after the verb
  3. Change "trabajan" to "trabaja" so both verbs in the sentence use the same singular conjugation
  4. Change "mis" to "mi" so the possessive adjective matches the singular verb "es" already in the sentence
Explanation: When you see a Spanish sentence with a subject and verb, your first instinct should be to check subject-verb agreement — the verb must match the subject in both number (singular/plural) and person. In this sentence, the subject is "mis hermanos," which is plural (more than one sibling). The verb "es" is the third-person singular form of ser, used for subjects like "él," "ella," or "usted." Since the subject is plural, the correct form is "son," the third-person plural conjugation. Changing "es" to "son" fixes the agreement error and makes the sentence grammatically correct — that's why A is the right answer. The other options each introduce a different kind of error. B suggests changing "inteligentes" to "inteligente," but adjectives in Spanish must agree with the noun they describe in both gender and number. Since "hermanos" is plural, "inteligentes" is already the correct plural form — changing it would actually create a new mistake. C proposes changing "trabajan" to "trabaja," but "trabajan" correctly agrees with the plural subject "mis hermanos." Making it singular would break correct agreement that already exists in the sentence. D suggests changing "mis" to "mi" to match the singular verb "es," but this is backwards thinking — you should fix the verb to match the subject, not shrink the possessive to match a broken verb. A useful habit: always identify your subject first, determine whether it's singular or plural, then check every verb and adjective in the sentence to make sure they match.

Question 3

A student wrote: "Yo tengo una clase de español a las dos. La clase son muy interesante."

The second sentence contains an error. Which correction is needed?

  1. Change "son" to "es" because the subject "la clase" is third-person singular and requires a singular verb (correct answer)
  2. Change "interesante" to "interesantes" because adjectives must always be plural when they follow a form of "ser"
  3. Change "La" to "Las" because the article must be plural to agree with the plural verb "son" already used
  4. Change "una clase" in the first sentence to "unas clases" so both sentences refer consistently to plural nouns
Explanation: When you see a sentence with a form of "ser" or "estar," your first instinct should be to check subject-verb agreement: does the verb match the subject in number and person? In "La clase son muy interesante," the subject is "la clase" — singular, third-person. However, the verb "son" is the third-person plural form of ser (used with ellos/ellas/ustedes). That mismatch is the error. The correct verb is "es," giving you "La clase es muy interesante." Answer A is correct because it fixes the verb to match the singular subject. Answer B is wrong because it misidentifies where the problem is. "Interesante" is already correct — it agrees with the singular noun "clase." The rule that adjectives must always be plural after ser is simply false; adjectives agree with the subject, not the verb. Answer C gets things backwards. You don't change the article to match a faulty verb — you fix the verb to match the subject. "La clase" correctly uses a singular article, and that shouldn't change. Answer D is a trap that drags an unrelated sentence into the problem. The first sentence ("Yo tengo una clase de español") is grammatically fine on its own. Changing "una clase" to "unas clases" introduces an unnecessary edit and doesn't resolve the agreement error in the second sentence at all. A useful habit: in any Spanish sentence, draw a quick mental arrow from the subject to the verb and ask, do these agree in number? That single check catches a huge percentage of agreement errors on Spanish exams.

Question 4

A student wrote this sentence about daily routines: "Ustedes habla español muy bien en la clase todos los días."

Which correction fixes the verb-agreement error in this sentence?

  1. Change "habla" to "hablamos" so the verb reflects a shared activity that includes the speaker along with the group
  2. Change "habla" to "habláis" so the verb uses the second-person plural vosotros form that corresponds to "ustedes"
  3. Change "Ustedes" to "Él" so the subject matches the third-person singular verb "habla" already used in the sentence
  4. Change "habla" to "hablan" so the verb agrees with the third-person plural subject "ustedes" (correct answer)
Explanation: When working with verb agreement in Spanish, your first job is to identify the subject and then match the verb ending to that subject. Every pronoun in Spanish has its own specific verb conjugation — mixing and matching creates agreement errors, which is exactly what happened in this sentence. The subject here is "ustedes," which means "you all" (used throughout Latin America and formally in Spain). Even though "ustedes" refers to the people you're speaking to, it grammatically behaves like a third-person plural subject, just like "ellos" or "ellas." That means it takes the -an ending for -ar verbs: hablan. Changing "habla" to hablan (choice D) is the correct fix — the verb now properly agrees with its subject. Choice A is tempting if you think "ustedes" implies a shared group activity, but "hablamos" is the nosotros form, meaning "we speak." Using it would change who is doing the speaking entirely, inserting the speaker into the sentence when the original doesn't include them. Choice B applies the vosotros form "habláis," which is only used in Spain for informal groups. More importantly, ustedes and vosotros are two different pronouns and never share the same conjugation — they can't be swapped freely. Choice C avoids fixing the verb and instead changes the subject to "Él" to match "habla." While this creates grammatical agreement, it completely changes the meaning of the sentence from "you all" to "he." Study tip: Memorize that ustedes always pairs with third-person plural verb forms (-an/-en) — it's one of the most commonly tested agreement traps in Spanish 1.

Question 5

A student wrote the following to describe her family: "Mi madre y mi padre trabaja en una oficina grande."

What correction is needed to fix the agreement error in this sentence?

  1. Change "grande" to "grandes" because the adjective must agree with the plural compound subject rather than with just "oficina"
  2. Change "Mi madre y mi padre" to "Mi madre con mi padre" so the subject is reworded and the verb "trabaja" no longer needs to change
  3. Change "trabaja" to "trabajan" because a compound subject joined by "y" is plural and requires a third-person plural verb (correct answer)
  4. Change "una" to "unos" because the article must become masculine plural to reflect both mother and father
Explanation: When a sentence has a compound subject — two or more nouns joined by y (and) — Spanish treats that subject as plural, which means the verb must reflect third-person plural agreement. That's the core concept being tested here. In the original sentence, "Mi madre y mi padre" combines two people into one compound subject, making it equivalent to "they." The verb trabaja is the third-person singular form (used for él/ella/usted), which doesn't match. The correct form is trabajan — the third-person plural — making answer C the right correction. Think of it this way: if you can replace the subject with ellos, you need the -n ending on the verb. The other choices each reflect a different misconception. A is tempting if you misread the question as being about adjective agreement rather than verb agreement — grande does correctly modify oficina (singular), so no change is needed there. B suggests rewording the subject to use con (with) instead of y — but this is a workaround, not a correction, and it subtly changes the meaning. More importantly, it avoids fixing the actual grammatical error. D confuses the article's role entirely: una correctly agrees with oficina (feminine singular), and changing it to unos would be both grammatically wrong and logically disconnected from the subject. A useful study habit: whenever you see y connecting two nouns as a subject, immediately check whether the verb ends in -n. That -n is your signal for third-person plural agreement in Spanish.

Question 6

A student wrote: "Nosotros estamos cansados después de la clase. Tú estamos cansada también."

The second sentence has a verb-ending error. Which correction is needed?

  1. Change "cansada" to "cansado" because the adjective must always use the masculine form regardless of the subject's gender
  2. Change "estamos" to "estás" so the verb agrees with the second-person singular subject "tú" (correct answer)
  3. Change "Tú" to "Nosotros" so the subject matches the verb "estamos" that is already correctly written
  4. Change "también" to "tampoco" because the sentence context implies a negative agreement with the first sentence
Explanation: When you see a verb in a Spanish sentence, your first job is to check whether its ending matches the subject pronoun. Spanish verbs change form depending on who is doing the action — this is called subject-verb agreement, and it's one of the most frequently tested concepts in Spanish 1. In the second sentence, "Tú estamos cansada," the subject is "tú" (you, singular), but "estamos" is the nosotros form of estar, meaning "we are." That mismatch is the error. The correct form of estar for "tú" is estás, making the corrected sentence "Tú estás cansada también." That's exactly what answer B fixes — and it's the right choice. Answer A is a distraction about adjective gender. While adjective agreement is a real concept, it's not the problem here. "Cansada" is perfectly correct if the subject "tú" refers to a female speaker. Changing it to "cansado" would only be appropriate for a male subject. Answer C suggests changing "Tú" to "Nosotros" so the subject matches "estamos" — but that completely changes the meaning of the sentence, which is supposed to be about a second person, not the same group from the first sentence. Answer D introduces a vocabulary swap, changing "también" (also) to "tampoco" (neither/not either). This would only make sense if the sentence were negative, which it isn't. A quick study tip: whenever you spot a subject pronoun in Spanish, immediately check that the verb ending matches it. Memorize the estar chart — yo estoy, tú estás, él/ella está, nosotros estamos — and you'll catch these errors instantly.

Question 7

A student wrote: "El profesor es aburrido, pero los estudiantes son muy aburridos también."

A classmate claims there is an agreement error in this sentence. Which statement about the sentence is accurate?

  1. The sentence contains an error: "aburridos" should be "aburridas" because "estudiantes" is a mixed-gender group and Spanish defaults to feminine
  2. The sentence contains an error: "son" should be "es" because collective nouns like "los estudiantes" take a singular verb form
  3. The sentence is correct as written: both adjectives agree properly in gender and number with their respective subjects (correct answer)
  4. The sentence contains an error: "aburrido" after "es" should be "aburrida" because adjectives following "ser" must always match the verb's gender
Explanation: When you see a question about adjective agreement in Spanish, your job is to check two things for each adjective: does it match its subject's gender and number? In this sentence, "El profesor" is singular and masculine, so "aburrido" is correct — singular, masculine. "Los estudiantes" is plural and masculine (or mixed-gender), so "aburridos" is correct — plural, masculine. Both adjectives agree perfectly with their respective subjects, and both verbs ("es" for singular, "son" for plural) match their subjects as well. The sentence is correct as written, making C the right answer. Now let's look at why the distractors are wrong. A claims Spanish defaults to feminine for mixed-gender groups — this is the opposite of the rule. Spanish defaults to masculine when a group is mixed-gender or when gender is unspecified, so "aburridos" is exactly right. B argues that "los estudiantes" is a collective noun requiring a singular verb, but "los estudiantes" is simply a regular plural noun, not a collective noun like "el grupo" or "la clase." Plural nouns take plural verbs, so "son" is correct. D introduces a false rule — adjectives following "ser" do not have a fixed gender; they agree with the subject, not the verb itself. Verbs don't carry gender in Spanish. A useful tip: whenever you spot an adjective agreement question, trace each adjective back to its subject noun and check gender and number separately. Don't let the verb distract you — only the noun determines adjective agreement.

Question 8

A student wrote the following about weekend activities: "Yo y mi amigo vamos al gimnasio. Nosotros hace ejercicio por dos horas."

The second sentence has an error. Which correction is needed?

  1. Change "ejercicio" to "ejercicios" because the noun must be plural to match the plural subject "nosotros" doing the activity
  2. Change "Nosotros" to "Él" so the subject matches the third-person singular verb "hace" already used in the sentence
  3. Change "hace" to "hacen" because "nosotros" refers to more than one person and therefore requires a third-person plural verb
  4. Change "hace" to "hacemos" so the verb agrees with the first-person plural subject "nosotros" (correct answer)
Explanation: When you see a verb paired with a subject pronoun in Spanish, your first instinct should be to check subject-verb agreement — does the verb ending match who is doing the action? In Spanish, every subject pronoun has its own verb ending. "Nosotros" (we) is first-person plural, and the present-tense form of hacer for nosotros is hacemos. The sentence "Nosotros hace ejercicio" uses "hace," which belongs to él/ella/usted (third-person singular). That mismatch is the error. Swapping "hace" for "hacemos" fixes the agreement and makes the sentence grammatically correct: "Nosotros hacemos ejercicio por dos horas." That's why D is correct. Looking at the distractors: A misunderstands how Spanish handles nouns. "Hacer ejercicio" is a fixed expression meaning "to exercise," and the noun "ejercicio" doesn't need to become plural to match the subject — verb endings carry that job, not the object noun. B would technically create agreement (él/ella → hace), but it changes the meaning entirely — suddenly only one person is exercising, which contradicts the passage's context of two friends. Choosing B means you're fixing the verb by breaking the sentence's intended meaning, which is never the right approach. C is a common trap: students sometimes confuse nosotros with a third-person "they" form. "Hacen" is the ellos/ellas (third-person plural) conjugation, not the nosotros form. Nosotros has its own distinct ending: -amos/-emos/-imos. A handy study tip: memorize the six present-tense endings as a set. Nosotros always ends in -mos — that suffix is your signal for "we."

Question 9

A student wrote this description: "Las mochilas de los estudiantes son negras y muy grande."

Which correction is needed to fix the adjective agreement error?

  1. Change "negras" to "negros" because all adjectives in a list must use the masculine form when modifying a school item
  2. Change "grande" to "grandes" so the second adjective also agrees with the plural noun "las mochilas" (correct answer)
  3. Change "Las" to "Los" so the article uses the masculine form to match the masculine adjective "grande" in the sentence
  4. Change "negras" to "negra" so both adjectives in the list match the singular form of the base adjective "grande"
Explanation: Whenever you see a question about Spanish adjectives, your first instinct should be to check number and gender agreement — every adjective must match the noun it describes in both of those categories. In this sentence, the noun is "las mochilas," which is feminine and plural. That means every adjective describing it must also be feminine and plural. The first adjective, "negras," is already correct — it's feminine and plural. The problem is the second adjective, "grande," which is singular. Since "mochilas" is plural, "grande" must become "grandes" to match. That makes B the correct fix: changing "grande" to "grandes" restores proper agreement across both adjectives in the list. As for the wrong answers: A is based on a false rule — Spanish does not require masculine forms when adjectives appear in a list. Each adjective simply agrees with the noun, regardless of its position. C inverts the logic entirely; you never change the article to match the adjective. The article agrees with the noun ("mochilas" is feminine, so "las" is already correct and should stay). D suggests making "negras" singular to match "grande," but this gets the correction backwards — you fix the adjective that's wrong, not break one that's already right. A helpful rule of thumb: when a noun has two or more adjectives, each one must independently agree with that noun. Don't let one correct adjective distract you from checking the others — that's exactly the trap this question sets.

Question 10

A student wrote the following sentence in a paragraph about her schedule: "Ella y yo tengo clases por la mañana y por la tarde."

Which correction is needed to fix the verb-agreement error?

  1. Change "tengo" to "tiene" because when "ella" appears before "yo" in a compound subject, the verb agrees with the subject named first
  2. Change "tengo" to "tenemos" because "ella y yo" forms a first-person plural compound subject that requires the nosotros conjugation (correct answer)
  3. Change "tengo" to "tienen" because any compound subject with more than one person requires a third-person plural verb in Spanish
  4. Change "tengo" to "tenéis" because a subject that includes more than one person uses the second-person plural vosotros form
Explanation: When you see a compound subject in Spanish, your first job is to figure out what combined subject the parts create together — because that's what determines the verb form. "Ella y yo" means "she and I." When you join any subject with "yo," the resulting compound subject is equivalent to "nosotros/nosotras" (we). Because of that, the verb must use the nosotros conjugation — in this case, tener → tenemos. That makes B the correct fix: "Ella y yo tenemos clases por la mañana y por la tarde." Here's why the other options miss the mark. A suggests the verb should agree with whichever person is named first in the subject — that rule simply doesn't exist in Spanish. Verb agreement is determined by the whole subject, not the first word in it. C claims any compound subject triggers a third-person plural (ellos/ellas) verb. This is only true when the compound subject contains no first- or second-person elements. Since "yo" is part of this subject, it overrides third-person, pulling the verb into first-person plural instead. D introduces tenéis, the vosotros form, which is used when speaking directly to a group of people (second-person plural). Neither "ella" nor "yo" represents a "you" being addressed, so vosotros has no role here. A handy rule of thumb: whenever "yo" appears in a compound subject, the verb goes to nosotros. Whenever "tú" appears (and no "yo"), the verb goes to vosotros. Let the pronouns in the subject guide you to the right conjugation group.