All questions
Question 1
Rōmānī, quī urbem magnam aedificāverant, glōriā et opibus abundābant. Senātōrēs lēgēs scrībēbant dum cīvēs in viīs festīnābant.
As your classmate reads the second sentence aloud, you try to track its clause structure. Which analysis correctly identifies the clauses in 'Senātōrēs lēgēs scrībēbant dum cīvēs in viīs festīnābant' and the role of the conjunction 'dum'?
- 'Senātōrēs lēgēs scrībēbant' and 'cīvēs in viīs festīnābant' are two coordinate main clauses; 'dum' introduces a simultaneous circumstance but does not subordinate the second clause because both actions carry equal narrative weight
- 'Senātōrēs lēgēs scrībēbant' is the sole main clause; 'dum cīvēs in viīs festīnābant' is a subordinate temporal clause introduced by the subordinating conjunction 'dum,' so the sentence contains one main clause and one subordinate clause (correct answer)
- 'Senātōrēs lēgēs scrībēbant' and 'cīvēs in viīs festīnābant' are two coordinate main clauses joined by 'dum,' which functions as a coordinating conjunction equivalent to 'et' when expressing simultaneous action
- 'Senātōrēs lēgēs' and 'cīvēs in viīs' form the two main clauses, each with an implied verb of being, while 'scrībēbant' and 'festīnābant' are participial phrases describing ongoing background activity
Explanation: When analyzing Latin sentence structure, your first job is to identify the conjunction and ask: is it coordinating (joining equals) or subordinating (making one clause dependent on another)? This question tests exactly that distinction.
The word dum is a subordinating temporal conjunction meaning "while." It introduces a dependent clause that cannot stand alone as a complete sentence — it relies on the main clause to give it full meaning. In this sentence, "Senātōrēs lēgēs scrībēbant" is the independent main clause (senators were writing laws), and "dum cīvēs in viīs festīnābant" is the subordinate temporal clause (while citizens were hurrying in the streets). The subordinate clause tells you when the main action occurred. Answer B correctly captures this: one main clause, one subordinate clause, with dum functioning as a subordinating conjunction.
Answer A is wrong because it misclassifies dum as something that leaves both clauses coordinate. "Equal narrative weight" is irrelevant to grammatical subordination — dum always subordinates, regardless of how important the action feels in context.
Answer C makes a factual error: dum is not a coordinating conjunction and is not equivalent to et. Coordinating conjunctions like et, sed, and atque join independent clauses; dum creates dependency.
Answer D invents a grammatical structure that simply doesn't exist here. Scrībēbant and festīnābant are finite imperfect verbs, not participial phrases — this answer confuses verb forms entirely.
As a study tip: memorize dum as a subordinating conjunction. Whenever you spot it, immediately identify the clause it introduces as the subordinate one and look for your independent main clause elsewhere in the sentence.
Question 2
Discipulī, cum magistrum audīvissent, libros aperuērunt et legere coepērunt. Magister eis dixit se gaudēre quod tam studiōsī essent.
As your classmate reads the first sentence, you track the key verb and the type of subordinate clause introduced by 'cum.' Given that 'audīvissent' is pluperfect subjunctive, which analysis of the 'cum' clause is correct, and what does this imply about the sequence of events?
- 'Cum magistrum audīvissent' is a concessive cum clause meaning 'although they had heard the teacher'; the pluperfect subjunctive marks concession whenever a cum clause precedes the main clause in word order
- 'Cum magistrum audīvissent' is a causal cum clause, because pluperfect subjunctive after 'cum' always signals cause rather than time, and the students opened their books as a result of having heard the teacher
- 'Cum magistrum audīvissent' is a circumstantial/temporal cum clause; the pluperfect subjunctive indicates the listening was completed before the main clause actions ('aperuērunt,' 'coepērunt'), placing it earlier in the narrative sequence (correct answer)
- 'Cum magistrum audīvissent' is a plain temporal clause with indicative force, since pluperfect subjunctive in a cum clause is equivalent to the pluperfect indicative and expresses the same simple time relationship without narrative nuance
Explanation: When you see a cum clause with a subjunctive verb in Latin, your first job is to identify which type of cum clause it is — temporal/circumstantial, causal, or concessive — because the tense of the subjunctive and the surrounding context both matter enormously.
Here, cum magistrum audīvissent uses the pluperfect subjunctive, which signals that the hearing was fully completed before the main verbs (aperuērunt, coepērunt) took place. This is the hallmark of a circumstantial cum clause: it narrates background circumstances in sequence, telling you when something happened in a story. The pluperfect places the listening earlier in the timeline — first the students heard the teacher, then they opened their books. Answer C captures this perfectly.
Answer A is wrong because concessive cum clauses ("although") don't depend on word order; they require contextual contrast between the subordinate and main clause — there's no such contrast here. Answer B is wrong because while pluperfect subjunctive can appear in causal cum clauses, no grammatical rule says it always signals cause. Causal cum clauses emphasize why something happened, but this sentence emphasizes when — a sequential narrative moment, not an explanation of motivation. Answer D is wrong because the pluperfect subjunctive is not equivalent to the pluperfect indicative; the subjunctive mood is precisely what makes this a subordinate cum clause with narrative nuance rather than a plain temporal statement.
Study tip: When analyzing a cum clause, ask yourself: Is there contrast (concessive)? A reason/motive (causal)? Or simply narrative sequence (circumstantial)? Context, not just tense, decides the type.
Question 3
Imperātor, quamquam fessus erat, mīlitēs hortātus est. Eōs iussit fortiter pugnāre nē hostēs urbem caperent.
While following the passage being read aloud, you track the clause structure of the second sentence. Which analysis correctly identifies all the clauses in 'Eōs iussit fortiter pugnāre nē hostēs urbem caperent'?
- One main clause ('Eōs iussit') with an accusative + infinitive phrase ('fortiter pugnāre') as its direct object, and one negative purpose clause ('nē hostēs urbem caperent')—making two clauses plus one non-finite phrase in total (correct answer)
- One main clause ('Eōs iussit fortiter pugnāre') with 'nē hostēs urbem caperent' as a fear clause dependent on the implied anxiety of the soldiers, making 'caperent' a verb of fearing rather than purpose
- Two coordinate main clauses—'Eōs iussit' and 'nē hostēs urbem caperent'—joined by the negative particle 'nē' functioning as a coordinating conjunction, with 'pugnāre' as an intervening infinitive modifier
- One main clause ('Eōs iussit') with 'fortiter pugnāre' as a complementary infinitive and 'nē hostēs urbem caperent' as a result clause (consecutive) introduced by 'nē,' expressing an unintended negative outcome
Explanation: When analyzing Latin clause structure, your first move should be identifying finite verbs (verbs with person and number endings) versus non-finite forms (infinitives, participles). Each finite verb anchors a clause; infinitives do not.
In this sentence, scan for finite verbs: iussit (he ordered) and caperent (they might take). That immediately tells you there are exactly two clauses. Now determine their relationship. Iussit is clearly the main verb. The verb iubēre (to order) takes an accusative + infinitive construction: eōs (accusative) + pugnāre (infinitive) tells you who is ordered to do what. Importantly, this is a non-finite phrase, not a separate clause—pugnāre has no subject-verb agreement, so it doesn't generate a clause on its own. Then nē hostēs urbem caperent is a negative purpose clause (introduced by nē + subjunctive), expressing why the soldiers were ordered to fight. Answer A correctly identifies all three components: one main clause, one non-finite accusative + infinitive phrase, and one subordinate purpose clause.
Answer B misidentifies caperent as a verb of fearing (timēre + nē), but nothing in the passage signals fear—iussit signals a command, not anxiety. Answer C wrongly treats nē as a coordinating conjunction and invents two main clauses; nē never coordinates main clauses in Latin. Answer D mislabels the nē-clause as a result (consecutive) clause; result clauses use ut/ut nōn + subjunctive, not nē.
Your study tip: memorize that iubeō takes accusative + infinitive, and that nē + subjunctive signals purpose (or prohibition), never coordination or result.
Question 4
Fēmina, quae in templō ōrābat, deam ōrāvit ut fīlius suus incolumis revenīret. Sacerdōs eī respondit deam precēs semper audīre.
As a classmate reads the second sentence aloud, you try to identify the subject of each verb. In 'Sacerdōs eī respondit deam precēs semper audīre,' which word is the subject of 'audīre,' and in which case does it appear?
- 'Deam' is the subject of 'audīre' in the accusative case, but this accusative functions as a nominative equivalent because divine subjects take accusative by an honorific convention in indirect statement
- 'Sacerdōs' is the subject of 'audīre' and appears in the nominative case, because the subject of any infinitive matches the subject of the main verb when no other noun intervenes between them
- 'Precēs' is the subject of 'audīre' and appears in the accusative case, since Latin assigns the nearest accusative noun to the infinitive as its subject in an indirect statement construction
- 'Deam' is the subject of 'audīre' and appears in the accusative case; in an indirect statement introduced by 'respondit,' the subject of the infinitive must be accusative, while 'precēs' (also accusative) is the object of 'audīre' (correct answer)
Explanation: Whenever Latin uses a verb of speaking, reporting, or responding (like respondit), watch for an indirect statement construction: the original speaker's claim gets repackaged with an accusative subject + infinitive. Your job is to identify which accusative noun is the subject of that infinitive and which is its object.
Here, respondit introduces the indirect statement deam precēs semper audīre. Both deam and precēs are accusative — so how do you tell them apart? By meaning and role: audīre ("to hear") needs someone doing the hearing and something being heard. The goddess (deam) is the one hearing; prayers (precēs) are what she hears. Therefore, D is correct: deam is the accusative subject of audīre, and precēs is its accusative direct object. This is the standard indirect statement structure in Latin — accusative subject, infinitive verb, accusative (or other case) object.
Choice A is a fabrication. There is no "honorific accusative" convention in Latin grammar for divine subjects — this rule simply does not exist. Choice B confuses the rule: in indirect statement, the subject of the infinitive is not the same as the main verb's subject unless it truly refers to the same person, in which case a reflexive pronoun appears — not a nominative noun. Sacerdōs cannot be the subject of audīre here. Choice C invents another false rule — Latin does not simply assign "the nearest accusative" as the infinitive's subject; logic and meaning determine the roles.
Your study tip: whenever you see two accusative nouns alongside an infinitive, ask yourself who is performing the action and who/what is receiving it — meaning, not proximity, assigns the roles.
Question 5
Mercātōrēs, nē pecūniam āmitterent, mercem cēlāvērunt. Quam ob causam custōdēs, quī mercem quaerēbant, eam invenīre nōn potuērunt.
A classmate reads both sentences aloud. You are tracking the key verbs across the two sentences. In the second sentence, 'Quam ob causam custōdēs, quī mercem quaerēbant, eam invenīre nōn potuērunt,' which element is the main clause verb, and what is the grammatical function of 'invenīre' within that clause?
- 'Quaerēbant' is the main clause verb of the second sentence because it is the first finite verb encountered; 'potuērunt' is then a perfect indicative in a relative clause expressing a result that follows from the guards' searching
- 'Invenīre' is the main clause verb because infinitives governed by modal verbs like 'possum' carry the primary predicate meaning, while 'potuērunt' subordinates itself grammatically as a modal auxiliary introducing the infinitive
- 'Potuērunt' is the main clause verb (perfect indicative of 'possum'); 'invenīre' is a complementary infinitive completing its meaning, so the main clause means 'the guards were not able to find it' (correct answer)
- Both 'potuērunt' and 'invenīre' share main clause status as a single compound predicate, since 'possum' + infinitive is always analyzed as one periphrastic verb form equivalent to a single main predicate unit
Explanation: When you see a Latin sentence containing a form of possum, your first job is to identify the finite verb (the one that shows person, number, tense, and mood) versus the infinitive that depends on it. This question tests exactly that distinction.
In the second sentence, potuērunt is the perfect indicative, third-person plural of possum — fully finite, showing that the guards "were able" (or in this case, "were not able"). The infinitive invenīre ("to find") is a complementary infinitive: it completes the meaning of possum, answering the question "able to do what?" Together, nōn potuērunt invenīre means "were not able to find it." That makes C correct — potuērunt is the main clause verb, and invenīre is its grammatical complement.
A misidentifies quaerēbant as the main clause verb. That verb sits inside the relative clause quī mercem quaerēbant ("who were searching for the goods"), which modifies custōdēs — it is subordinate, not main. B inverts the relationship between possum and the infinitive. In Latin, possum is always the finite verb; infinitives cannot function as main verbs. Calling potuērunt a "modal auxiliary" imposes English grammar onto Latin, which doesn't work. D is tempting but imprecise: while possum + infinitive does function together semantically, they are not a single periphrastic form the way amātus est (passive) is. They remain grammatically distinct — one finite, one infinitive.
Study tip: Whenever you spot possum, volō, debeō, or coepī, look for the complementary infinitive beside it — that infinitive is always a dependent, never the main verb.
Question 6
Puella pulchra in forō ambulābat. Mercātor eam vīdit et ad eam accessit. 'Quid vendis?' puella rogāvit. Mercātor respondit sē multās rēs pretiōsās habēre.
While following along as a classmate reads this passage aloud, you need to identify the key verb of the final sentence. Which verb carries the main predicate of the last sentence, and what is the grammatical relationship of the remaining verbs in that sentence?
- 'Respondit' is the main verb; 'habēre' is an infinitive in an indirect statement dependent on 'respondit,' with 'sē' as its accusative subject referring back to the mercātor (correct answer)
- 'Habēre' is the main verb because infinitives in Latin can serve as independent predicates, and 'respondit' provides background context rather than the primary assertion of the sentence
- Both 'respondit' and 'habēre' share equal predicate status in a compound main clause, since Latin frequently omits conjunctions between finite and non-finite verbs placed at the same level
- 'Respondit' is the main verb, but 'habēre' is a complementary infinitive modifying 'sē,' which acts as the indirect object of 'respondit' rather than the subject of an indirect statement
Explanation: When you encounter a Latin sentence with both a finite verb and an infinitive, your first task is to identify the construction — particularly whether the infinitive belongs to an indirect statement (ōrātiō oblīqua). This passage tests exactly that.
The final sentence reads: Mercātor respondit sē multās rēs pretiōsās habēre. The verb respondit ("he replied") is a verb of speaking/reporting — a classic trigger for indirect statement in Latin. After such verbs, Latin introduces reported speech using an accusative subject + infinitive construction. Here, sē is the accusative subject (reflexive, referring back to the mercātor), and habēre is the infinitive completing the indirect statement: "he replied that he had many precious things." Answer A correctly identifies this structure — respondit carries the main predicate, while habēre functions as an infinitive within the dependent indirect statement.
Answer B is fundamentally wrong because Latin infinitives cannot stand alone as independent main predicates in standard finite clauses — they require a controlling verb. Answer C invents a rule that doesn't exist: Latin never treats a finite verb and an infinitive as coordinate, equal predicates without explicit conjunction and structure to support that. Answer D misidentifies sē as an indirect object of respondit, when in fact sē is the accusative subject of the infinitive habēre — a crucial distinction that defines the indirect statement construction.
Your study tip: memorize the list of verbs that trigger indirect statement (dīcō, respondeō, putō, sciō, etc.). When you see one of these, immediately scan for accusative + infinitive — that's your indirect statement signal.
Question 7
Mīlitēs, postquam hostem vīcērunt, in castrīs quiēvērunt. Dux, tamen, dormīre nōluit quod perīculum semper timēbat.
A classmate reads the first sentence aloud. You are tracking clause boundaries. How many distinct clauses does the first sentence contain, and what type is each?
- Two clauses: one main clause ('Mīlitēs…quiēvērunt') and one subordinate temporal clause ('postquam hostem vīcērunt'), making the postquam clause the key subordinate element embedded before the main verb (correct answer)
- Three clauses: the postquam clause, a relative clause modifying 'mīlitēs,' and the main clause—because 'in castrīs' introduces an implied locative clause that functions independently in adapted Latin
- One clause only, because 'postquam' in adapted Latin texts is treated as a coordinating conjunction equivalent to 'et,' merging both verb phrases into a single independent clause with two predicates
- Two clauses: one subordinate causal clause ('postquam hostem vīcērunt') and one main clause ('mīlitēs…quiēvērunt'), where 'postquam' signals cause rather than time in classical usage
Explanation: When analyzing Latin sentences for clause structure, your first move should always be to identify every finite verb — each one anchors a clause. Then ask whether each clause stands alone (independent/main) or depends on another (subordinate, introduced by a conjunction like postquam, quod, dum, or cum).
In the first sentence, you have exactly two finite verbs: vīcērunt and quiēvērunt. That means two clauses. The word postquam ("after") is a subordinating temporal conjunction, which means it introduces a dependent clause that cannot stand alone — it tells you when the main action happened. So postquam hostem vīcērunt is the subordinate temporal clause, and Mīlitēs…quiēvērunt is the main (independent) clause. That's precisely what A describes, making it correct.
B is wrong because in castrīs is simply a prepositional phrase functioning as a locative modifier — it does not introduce a clause of any kind. There is also no relative pronoun in the sentence, so no relative clause exists.
C is wrong because postquam is never a coordinating conjunction. Coordinating conjunctions (like et, sed, aut) join grammatically equal elements; postquam explicitly subordinates one clause to another. Treating them as equivalent fundamentally misunderstands Latin clause hierarchy.
D is wrong because postquam signals time, not cause. Causal subordination in Latin is handled by conjunctions like quod, quia, or quoniam — which, helpfully, you can see used correctly with timēbat in the very next sentence.
Your strategy: always count finite verbs first, then classify each conjunction. That two-step process will quickly unlock clause structure on any Latin passage.
Question 8
Servī in agrīs labōrābant. Dominus, quī in vīllā sedēbat, servōs spectābat. Subitō ūnus servus cecidit et clāmāvit. Dominus ad servum cucurrit et aquam portāvit.
A classmate reads the passage aloud. You are tracking clause boundaries. After the classmate reads 'Dominus, quī in vīllā sedēbat,' which element signals that the relative clause has ended and the main clause verb is about to follow?
- The word 'quī,' which opens the relative clause and simultaneously marks its closure once any new noun appears, signaling that the main clause is resuming
- The comma after 'sedēbat,' combined with recognizing that 'Dominus' is the antecedent already named, signals that 'sedēbat' is the relative clause verb and the main verb 'spectābat' will complete the thought (correct answer)
- The ablative phrase 'in vīllā,' because prepositional phrases always mark the boundary of relative clauses in adapted Latin texts
- The imperfect tense of 'sedēbat,' which automatically marks a subordinate clause, so the next perfect-tense verb begins the main clause regardless of punctuation
Explanation: When reading Latin aloud and tracking clause structure, you need to recognize two things working together: grammatical signals and punctuation cues. Relative clauses in Latin are introduced by a relative pronoun (quī, quae, quod), contain their own verb, and modify a noun called the antecedent — but none of that tells you when the clause ends unless you notice the moment the relative clause's verb arrives and the surrounding punctuation closes the bracket.
In this sentence, Dominus is the antecedent. The relative pronoun quī opens a subordinate clause, and sedēbat is that clause's verb — it tells you what quī (referring to Dominus) was doing. The comma after sedēbat is the structural signal that the subordinate clause is complete. You've heard the antecedent, the relative pronoun, and the relative clause verb; the only thing missing is the main verb, which spectābat then supplies. That combination — antecedent already named + relative clause verb arrived + comma closing the bracket — confirms B as the correct answer.
A is wrong because quī opens the clause but never "closes" it; relative pronouns don't self-terminate once a new noun appears. That's a fabricated rule. C is wrong because prepositional phrases like in vīllā are internal modifiers and carry no special clause-boundary power; they appear freely inside clauses without ending them. D is wrong because tense alone does not determine clause type — imperfect verbs appear in both main and subordinate clauses constantly, so equating imperfect with subordination is a false rule.
Your strategy: when tracking clause boundaries in Latin, always look for the relative clause verb plus punctuation together — neither one alone is sufficient.
Question 9
Cicerō, ōrātor clārissimus, in senātū dīxit: 'Cīvēs Rōmānī, quī lībertātem amant, semper contrā tyrannōs pugnābunt.'
Your classmate reads the passage aloud, including the embedded direct quotation. When tracking clause boundaries within the quotation 'Cīvēs Rōmānī, quī lībertātem amant, semper contrā tyrannōs pugnābunt,' which verb is the key verb of the main clause, and what makes identifying it challenging?
- Both 'amant' and 'pugnābunt' are main clause verbs in a compound predicate, because the relative pronoun 'quī' can introduce a coordinate clause when its antecedent and referent are the same group
- 'Amant' is the main clause verb (present indicative), because it is the first finite verb after the subject 'Cīvēs Rōmānī,' and in oral reading the first finite verb following a nominative subject always anchors the main clause
- 'Pugnābunt' is the main clause verb, and there is no significant difficulty in identifying it because relative clauses are always marked by clear audible pauses when read aloud, making 'amant' immediately recognizable as subordinate
- 'Pugnābunt' is the main clause verb (future indicative); the challenge is that 'amant' appears directly after the subject and could be mistaken for the main verb when heard aloud, before the listener registers that 'quī' has opened a relative clause (correct answer)
Explanation: When parsing a Latin sentence with an embedded relative clause, your job is to identify which finite verb belongs to the main clause and which belongs to the subordinate clause — a task that becomes trickier in oral reading, where you process words sequentially rather than seeing the whole sentence at once.
In the quotation Cīvēs Rōmānī, quī lībertātem amant, semper contrā tyrannōs pugnābunt, the relative pronoun quī opens a subordinate relative clause that borrows Cīvēs Rōmānī as its antecedent. Everything between the two commas — quī lībertātem amant — is that subordinate clause, with amant as its verb. Once the relative clause closes, the main clause resumes: semper contrā tyrannōs pugnābunt, with pugnābunt (future indicative) as the true main verb. D is correct. The genuine challenge is that a listener hears Cīvēs Rōmānī (a nominative subject) followed almost immediately by amant (a finite verb), which creates a momentary illusion that amant is anchoring the main clause — before the listener has fully processed that quī already opened a subordinate construction.
A is wrong because quī always subordinates; a relative pronoun cannot magically become a coordinating conjunction simply because its referent overlaps with the subject. B is wrong because Latin grammar — not word order — determines main vs. subordinate status; the "first finite verb after the subject" rule has no basis in Latin syntax. C is wrong because it dismisses the real difficulty: oral reading does not guarantee clear auditory signals at clause boundaries, which is precisely what makes this challenging.
Study tip: Whenever you hear or see a relative pronoun (quī, quae, quod), mentally bracket everything until the clause closes — the main verb always lies outside that bracket.
Question 10
Puer, cui magister librum dederat, laetus erat. Librum tōtā nocte legit et multa dīdicit.
Your classmate reads 'Puer, cui magister librum dederat, laetus erat' aloud. You are identifying the key verb of the main clause. Which verb is the main clause verb, what form is it, and why is 'dederat' not the main verb?
- 'Erat' is the main clause verb (imperfect indicative of 'esse'); 'dederat' is pluperfect indicative inside the relative clause introduced by 'cui,' indicating an action completed before the state described by 'erat' (correct answer)
- 'Dederat' is the main clause verb (pluperfect indicative) because pluperfect tense marks a foregrounded, completed action, while 'erat' functions as a subordinate auxiliary supporting the predicate adjective 'laetus'
- Both 'dederat' and 'erat' are main clause verbs in a compound predicate, since Latin relative clauses introduced by 'cui' can share their verb with the main clause when both refer to the same person
- 'Erat' is the main clause verb, but 'dederat' is a circumstantial pluperfect participle functioning adverbially to modify 'laetus' by indicating a prior completed circumstance rather than serving as a finite verb
Explanation: When you encounter a Latin sentence with both a main clause and a relative clause, your first job is to identify the clause boundaries. The relative pronoun cui ("to whom") introduces a subordinate relative clause, and everything inside that clause belongs to it — including its verb.
Here, the structure breaks down cleanly: Puer... laetus erat is the main clause, and cui magister librum dederat is the embedded relative clause modifying puer. The main clause verb is erat — imperfect indicative of esse — linking the subject puer to the predicate adjective laetus. Dederat, a pluperfect indicative of dare, lives inside the relative clause and describes what the teacher had already done before the boy was happy. The pluperfect signals prior completed action relative to the main clause's past timeframe. This makes A correct.
B is backwards: dederat cannot be the main verb because it is syntactically trapped inside the cui clause. Latin pluperfect tense does not "foreground" an action enough to override clause structure, and erat is a fully independent linking verb, not an auxiliary.
C invents a grammar rule that doesn't exist. Relative clauses introduced by cui are always subordinate; their verbs cannot be "shared" with the main clause. Dederat and erat serve different clauses entirely.
D is creative but wrong: dederat is a finite verb (third-person singular pluperfect indicative), not a participle. Latin participles are non-finite adjective-style forms, which dederat is not.
Study tip: Always locate the relative pronoun first — it draws a boundary. Everything between it and the end of the relative clause is subordinate, no matter the tense of the verb inside.