Subject and Verb Agreement

The subject of sentences must always agree with their verbs: both must be singular, or both must be plural. Problems arise in the present tense because one must add an -s or -es at the end of the verb when the subjects performing the action is a singular third person: he, she, it.

Notice the difference between singular and plural forms in the following examples:

The star sings. (He or she sings) Your grandchildren sing. (They sing)
The bird will migrate. (It does) Those birds migrate. (They do)

In order to find out if your subject and verb agree, you need to be able to identify the subject of your sentence. Let's review where we find the subject of our sentence.







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