what is a subject verb agreement

Subject-verb agreement is the grammar rule that the subject and the verb in a sentence must match in number: a singular subject takes a singular verb, and a plural subject takes a plural verb.

What is subject-verb agreement?

• If the subject is singular, the verb is singular:
  • “The cat purrs.” (“cat” = singular, so “purrs” is singular.)

• If the subject is plural, the verb is plural:
  • “The cats purr.” (“cats” = plural, so “purr” is plural.)

In English, this agreement mainly shows in present tense verbs (often by adding or removing an s /“es”) and in different forms of the verb “be” (am, is, are).

Quick rules and examples

• Singular subject → singular verb:
  • “A student writes well.”

• Plural subject → plural verb:
  • “Students write well.”

• With “and” (two subjects), use a plural verb:
  • “The teacher and the student are ready.”

• With “either…or / neither…nor”, the verb agrees with the subject closer to it:
  • “Neither the coach nor the players are satisfied.”

Common tricky cases (mini guide)

• Indefinite pronouns like “everyone”, “each”, “somebody” usually take a singular verb:
  • “Everyone is happy.”

• Amounts of time, money, distance often take a singular verb:
  • “Thirty dollars is enough.”

• Collective or grouped ideas may take singular verbs when seen as one unit:
  • “The news is spreading quickly.”

Why it matters now

Clear subject-verb agreement makes your writing sound correct and easy to read, which is especially important for exams, applications, and professional emails in 2025–2026 where polished English is expected. Online grammar tools and modern guides still highlight this as one of the most frequent errors people make in everyday and workplace writing.

TL;DR: Subject-verb agreement means the subject and verb must match in number: singular with singular (“A cat runs”), plural with plural (“Cats run”).

Information gathered from public forums or data available on the internet and portrayed here.