24 Subject & Verb Agreement

Icon of two speech bubbles; one has a thumbs-up sign in itThe basic idea behind sentence agreement is pretty simple: all the parts of your sentence should match (or agree). Verbs need to agree with their subjects in number (singular or plural) and in person (first, second, or third). In order to check agreement, you simply need to find the verb and ask who or what is doing the action of that verb.

Person

Agreement based on grammatical person (first, second, or third person) is found mostly between verb and subject. For example, you can say “I am” or “he is,” but not “I is” or “he am.” This is because the grammar of the language requires that the verb and its subject agree in person. The pronouns I and he are first and third person respectively, as are the verb forms am and is. The verb form must be selected so that it has the same person as the subject.

Number

Agreement based on grammatical number can occur between verb and subject, as in the case of grammatical person discussed above. In fact the two categories are often conflated within verb conjugation patterns: there are specific verb forms for first person singular, second person plural and so on. Some examples:

  • I really am (1st pers. singular) vs. We really are (1st pers. plural)
  • The boy sings (3rd pers. singular) vs. The boys sing (3rd pers. plural)

More Examples

Compound subjects are plural, and their verbs should agree. Look at the following sentence for an example:

  • A pencil, a backpack, and a notebook were issued to each student.

Verbs will never agree with nouns that are in prepositional phrases. To make verbs agree with their subjects, follow this example:

  • The direction of the three plays is the topic of my talk.

The subject of “my talk” is direction, not plays, so the verb should be singular.

In the English language, verbs usually follow subjects. But when this order is reversed, the writer must make the verb agree with the subject, not with a noun that happens to precede it. For example:

  • Beside the house stand sheds filled with tools.

The subject is sheds; it is plural, so the verb must be stand.

Agreement

All regular verbs (and nearly all irregular ones) in English agree in the third-person singular of the present indicative by adding a suffix of either -s or -es.

Look at the present tense of to love, for example:

Person Number
Singular Plural
First I love we love
Second you love you love
Third he/she/it loves they love

The highly irregular verb to be is the only verb with more agreement than this in the present tense:

Person Number
Singular Plural
First I am we are
Second you are you are
Third he/she/it is they are

Practice

Choose the correct verb to make the sentences agree:

  1. Ann (walk / walks) really slowly.
  2. You (is / am / are) dating Tom?
  3. Donna and April (get / gets) along well.
  4. Chris and Ben (is / am / are) the best duo this company has ever seen.
Show Answer
  1. Ann walks really slowly.
    • Ann is a singular, third-person subject.
  2. You are dating Tom?
    • You is a singular, second-person subject.
  3. Donna and April get along well.
    • Donna and April is a plural, third-person subject.
  4. Chris and Ben are the best duo this company has ever seen.
    • Chris and Ben is a plural, third-person subject.

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