What part of the sentence states what subject does in a sentence?

The part of the sentence that states what the subject does is called the verb.

Here's a breakdown:

* Subject: The person, place, thing, or idea that the sentence is about.

* Verb: The action or state of being that the subject performs or experiences.

Example:

* The cat (subject) meows (verb).

In this sentence, the subject is "the cat" and the verb is "meows." The verb tells us what the cat does (meows).