Subject/verb agreement is simple: if the subject of the sentences is singular, then the verb must be singular; if the subject of the sentences is plural, then the verb must be plural. An s on a verb usually indicates that the verb is singular, while an s on a noun usually indicates that the noun is plural.
The boy walks to school.
The boys walk to school.
You should be careful of subject/verb agreement in the following situations:
- After prepositional phrases.
- After expressions of quantity.
- After inverted verbs.
- After certain words, such as anybody, everything, no one, something, each and every.
In the next link you have some exercises for each skills (20-23):
Problems with subject-verb agreement
QUIZ
TOEFL EXERCISE (Skills 20-23): In the questions with a space (____) choose the word or group of words that best completes the sentence and in the other questions choose the word or group of words that is not correct.
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