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XX.1 Identify action verbs

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What is subject-verb agreement?

Subject-verb agreement means that the verb in a sentence must match the subject. If the subject is one (singular), the verb must also be singular. If the subject is more than one (plural), the verb must be plural.

Examples:
  • Singular: “The dog runs fast.”
  • Plural: “The dogs run fast.”
Helpful hint

Ask yourself: “Is the subject one thing or more than one?” That will help you choose the right verb form.

Why is subject-verb agreement important?

Subject-verb agreement makes writing and speaking clear. If subjects and verbs do not match, the sentence sounds incorrect and may confuse the reader or listener.

Example Sentences:
  • Incorrect: “The cat run outside.”
  • Correct: “The cat runs outside.”
Helpful hint

Always check: Does my verb match the subject? One subject = singular verb. More than one subject = plural verb.

Common subject-verb agreement rules

Here are some rules to remember when matching subjects and verbs:

Rules with Examples:
  • One subject: Add -s to most verbs.
    Example: “She likes to read.”
  • More than one subject: Do not add -s.
    Example: “They like to read.”
  • I and you: Always use the base verb.
    Example: “I play soccer.” / “You play soccer.”
Helpful hint

Watch out for words like “each” or “everyone.” Even though they talk about more than one, they take a singular verb: “Everyone is ready.”

Putting it all together

Strong grammar uses the right verb form every time. When the subject and verb agree, your sentences are clear and correct.

Examples:
  • “My friend plays the piano.” (singular subject + singular verb)
  • “My friends play the piano.” (plural subject + plural verb)
  • “I like ice cream. You like ice cream too.” (special rule for I and you)
Helpful hint

Remember: The subject and verb must always agree. Read your sentence aloud—if it sounds wrong, check the verb!

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