Subject-Verb Agreement Basics
Subject-verb agreement means your verb must match your subject in number. A singular subject gets a singular verb; a plural subject gets a plural verb. This sounds simple, but English has enough quirks and exceptions to trip up even strong writers. Getting agreement right is one of the fastest ways to make your writing sound polished and clear.
This section covers the core rules, then moves into the special cases that show up most often on tests and in formal writing.
Singular and Plural Subjects with Compound Subjects
The fundamental rule: singular subjects take singular verbs, and plural subjects take plural verbs.
- The cat sleeps on the couch. (singular subject, singular verb)
- The dogs bark loudly in the park. (plural subject, plural verb)
A quick way to remember: in the present tense, singular verbs usually end in -s (runs, sleeps, writes), while plural verbs drop the -s (run, sleep, write). This feels backwards compared to how nouns work, so watch for it.
Compound subjects (two or more subjects connected by a conjunction) follow specific patterns:
- Joined by "and" → almost always plural: Tom and Jerry chase each other around the house.
- Joined by "or" or "nor" → the verb agrees with the nearest subject: Either the books or the magazine is missing. / Either the magazine or the books are missing.
- Phrases like "as well as," "along with," and "together with" do not create a true compound subject. The verb matches the first subject only: The teacher, along with her students, is going on a field trip.
That last rule catches a lot of people. The phrase "along with her students" is set off by commas because it's parenthetical, not part of the core subject.
Collective Nouns and Indefinite Pronouns
Collective nouns name a group of people or things (team, jury, committee, family). Whether they take a singular or plural verb depends on whether the group is acting as one unit or as separate individuals.
- Acting as a unit → singular: The team is practicing for the championship.
- Acting as individuals → plural: The team are arguing among themselves.
In American English, the singular form is far more common. You'll mostly use plural verbs with collective nouns only when emphasizing that members are doing different things.
A few nouns that look collective are always plural: people, cattle, police. You'd say The police are investigating, never The police is investigating.
Indefinite pronouns fall into three categories:
- Always singular: anyone, everyone, someone, nobody, each, either, neither, one → Everyone is excited about the concert.
- Always plural: both, few, many, several → Few are willing to volunteer.
- Singular or plural depending on the noun they refer to: all, some, most, none, any → All of the cake is gone. (cake = singular) / All of the cookies are gone. (cookies = plural)
For that third group, look at the noun in the prepositional phrase that follows. That noun determines whether the verb is singular or plural.
Special Cases in Subject-Verb Agreement
Intervening Phrases and Inverted Sentences
One of the most common agreement errors happens when a phrase sits between the subject and the verb. Your ear might pull you toward matching the verb to the nearest noun, but the verb must agree with the actual subject.
- The box of chocolates sits on the table. (subject = box, not chocolates)
- The collection of rare stamps is valuable. (subject = collection, not stamps)
When you're unsure, try mentally crossing out the prepositional phrase. The box of chocolates sits on the table. The correct verb becomes obvious.
Inverted sentences flip the usual subject-before-verb order, which can make the subject harder to spot:
- There are many books on the shelf. (subject = books)
- Here comes the parade. (subject = parade)
- Where are the keys to the car? (subject = keys)
With sentences starting with "there" or "here," look after the verb to find the true subject. "There" and "here" are never the subject.
Relative Pronouns and Special Constructions
When a relative pronoun (who, which, that) is the subject of its clause, the verb agrees with the pronoun's antecedent (the word it refers to).
- The student who works hard succeeds. (who = student → singular)
- The students who work hard succeed. (who = students → plural)
The tricky construction is "one of the [plural noun] who/that..." In this pattern, the relative pronoun refers to the plural noun, not to "one":
- She is one of the students who are going on the trip. (who = students → plural)
Several other special constructions are worth memorizing:
- Amounts of time, money, and distance take singular verbs when treated as a single unit: Five dollars is too much for that item. / Three miles is a long walk.
- Titles of books, movies, and other works are always singular, even if the title contains a plural noun: The Chronicles of Narnia is a beloved series.
- Nouns that look plural but aren't take singular verbs: Mathematics is my favorite subject. Other examples include physics, economics, news, and measles.