What states what a subject has is or does in sentence?

The part of a sentence that states what a subject *is* or *does* is called the predicate.

Here's a breakdown:

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

* Predicate: The part of the sentence that tells us something about the subject. It typically includes a verb and often includes other words that modify the verb or provide additional information about the subject's action or state of being.

Examples:

* Subject: The cat

* Predicate: slept peacefully on the rug.

* Subject: The flowers

* Predicate: are beautiful and fragrant.

Let me know if you'd like more examples or have any further questions!