Subject-verb agreement
Subject-verb agreement is the grammar rule that a verb must match its subject in number: singular subjects take singular verbs, and plural subjects take plural verbs. Test questions hide the mismatch by separating the subject from the verb.
Subject-verb agreement means the verb changes form to match its subject in number. A singular subject takes a singular verb ("the dog barks"), and a plural subject takes a plural verb ("the dogs bark"). Native speakers apply the rule automatically in short sentences — which is exactly why test writers build sentences where the subject and verb are far apart.
The classic trap is an interrupting phrase. In "The bouquet of roses smells wonderful," the subject is bouquet, not roses — the prepositional phrase "of roses" is a distractor. To check agreement, mentally cross out phrases between the subject and verb (prepositional phrases, appositives, clauses set off by commas) and match the verb to the true subject.
A few patterns deserve memorizing. Indefinite pronouns like each, either, everyone, and neither are singular. Compound subjects joined by and are plural, but with or/nor the verb agrees with the nearer subject. Collective nouns like team or committee are usually singular in American English. And when a sentence inverts — "There are several reasons..." — the subject follows the verb, so you must look ahead to find it.
Subject-verb agreement is a staple of standardized test grammar. The SAT tests it in Standard English Conventions questions, the ACT tests it under conventions of usage, and the CLT includes dedicated subject/verb agreement questions — in every case, spotting the true subject through the interrupting words is the skill being measured.
Key takeaways
- Singular subjects take singular verbs; plural subjects take plural verbs.
- Cross out interrupting phrases (like prepositional phrases) to find the true subject before checking the verb.
- Indefinite pronouns such as each, either, and everyone are singular; subjects joined by "and" are plural.
- With "or" or "nor," the verb agrees with the subject closer to it.
- The SAT, ACT, and CLT all test subject-verb agreement by separating the subject from the verb.