Verb Syntax: Edge Cases
Most of the time the verb agrees with its subject the way you'd expect: one subject, one verb; two subjects, plural verb. This page is about the moments when Latin doesn't behave that way.
A collective noun like multitūdō takes a singular verb when you're picturing the crowd as one mass and a plural verb when you're picturing the people in it.
A compound subject sometimes flips to the number of the closer noun, especially when the verb sits next to it.
Mix persons in one subject (ego et tū) and the verb climbs to first-person plural — "I-and-you" outranks "you-and-someone-else." And constantly, especially in proverbs, headlines, and exclamations, the verb just isn't there: omnia praeclāra rāra — "[everything] excellent [is] rare." Latin trusts you to supply the missing est.
Latin's verb-agreement rule has a clean default and four predictable escapes — collective sense, compound attraction, person priority, and dropped esse.
When something looks 'wrong,' check these four escapes before assuming a textual error: ad-sensum agreement, attraction to nearest noun, person priority, and silent est / sunt.
See It In Action
— B. G. ii.12.4
Caesar pictures the routed Suessiones as one swarming body, so multitūdō takes the singular convēnit — switch the focus to the people inside and a plural verb would be just as legal.
— B. C. iii.30.1
Two singular nouns plus atque take a plural verb — the rule that holds 95% of the time. The exceptions on this page are exactly that: exceptions to cognōscunt.
— Plin. Ep. ix.17.3
ego et tū is 1sg + 2sg, but the verb climbs all the way to 1st-person plural. The most 'inclusive' person wins: ego outranks tū, and tū outranks ille.
— Cic. Cat. i.2
Ō tempora, ō mōrēs! has no verb at all — Cicero trusts you to feel "[what a time we live in!]" Then the standard rule snaps back: each singular subject takes its own singular verb.
supply est / sunt between the two nominatives — "X [is] Y"
amor omnia vincit present; but amor caecus → amor [est] caecus, "love [is] blind"
supply est / sunt / erat with the participle — "X has been / had been ed"
urbs capta → urbs capta [est], "the city has been captured"
no verb needed in English either — render with "What !" or "How !"
ō tempora, ō mōrēs! → "What times! What morals!"
supply the most natural form of sum; English usually drops it too
sēnātus populusque Rōmānus → "The Senate and Roman People [is here]" (banner)
carry the previous clause's verb forward into the gap
senātus intellegit, cōnsul videt; hic tamen vīvit — videt is local; intellegit borrows nothing
When the subject is a collective noun, the singular verb might mean "this one group" OR "this one person." Context decides.
one specific person or thing acts
cōnsul videt
the consul sees
one MASS treated as a unit
multitūdō convēnit
the crowd gathered (as one)
Tip: Ask: would replacing the noun with a plural change the picture? If multitūdō could become hominēs with no loss of sense, you're in collective territory — and the author chose the singular for a reason (the unity of the action).
In Interim omnis ex fugā Suessiōnum multitūdō in oppidum convēnit, why is the verb singular when multitūdō refers to many people?
Study Tips
- •When you see a collective noun (multitūdō, pars, turba, exercitus) check the verb FIRST — singular means the author is picturing one mass, plural means the people inside the mass.
- •If the subject is two nouns joined by et and the verb is singular, look at which noun is closer to the verb — Latin often agrees with the nearer one rather than the whole compound.
- •Train your eye to mentally insert est / sunt / erat in any short Latin phrase that looks verb-less. Proverbs, mottoes, and most predicate-noun sentences elide the copula.
- •Mixed-person compounds default to the most 'inclusive' person: 1st > 2nd > 3rd. ego et tū takes 1pl, tū et ille takes 2pl.