Subject-verb agreement means the verb must match its subject in number: a singular subject takes a singular verb, a plural subject takes a plural verb. “The dog barks” and “the dogs bark.” Simple in theory — but a handful of cases trip up even careful writers.
The basic rule
Singular subject → singular verb (“she writes”). Plural subject → plural verb (“they write”). The confusion almost always comes from not being sure what the real subject is.
The traps
1. Words between the subject and verb. Ignore phrases that interrupt: “The box of chocolates is on the table.” The subject is “box” (singular), not “chocolates.”
2. Each, every, either, neither. These are singular: “Each of the students has a laptop.” “Neither answer is correct.”
3. Collective nouns. Team, group, family, staff usually take a singular verb in American English: “The team is winning.”
4. Compound subjects with ‘and’. Two subjects joined by “and” are plural: “The teacher and the student agree.”
5. ‘Or’ and ‘nor’. The verb agrees with the nearest subject: “Neither the manager nor the employees were informed.” Flip them and it changes: “Neither the employees nor the manager was informed.”
6. ‘There is’ / ‘there are’. The verb agrees with what follows: “There is one issue.” “There are several issues.”
Why it’s easy to miss
Agreement errors slip through because your ear often accepts the nearest noun. When you’ve stared at a sentence too long, run it through the grammar checker — agreement mismatches are exactly the kind of error it’s built to flag. If a sentence is so long you’ve lost track of its subject, that’s a signal too: the readability checker will flag it, and the paraphraser on Shorten mode can split it so the subject and verb sit close together.
The quick check
Find the true subject, strip away everything between it and the verb, and read them side by side. If “subject + verb” sounds right alone, it’s right in the full sentence.
AI-powered — please review results before use.