Verbs must agree with their subject in person and number.

If the subject is first person singular, the verb must be first person singular.

If the subject is second person plural, the verb must be second person plural.

This is called "agreement."

The verb does this by changing its form. To illustrate, look at the three forms of the verb "is" that we already know.

  • εἰμί is first person singular. "I am."
  • ἐστιν is third person singular. "He is."
  • ἐσμέν is first person plural. "We are."

The verb changes its form depending on its person and number.

We do this in English for subjects that are third person singular. How do we change the verb to make it agree with a subject like "he" or "cake"? Give examples.