A predicate is a fundamental part of a sentence that tells us what the subject does or what happens to the subject. It usually includes a verb and can also contain objects, complements, or modifiers. For example, in the sentence "The cat subject sleeps on the mat predicate," the predicate "sleeps on the mat" describes the action of the subject. In English grammar, predicates can be simple or compound. A simple predicate consists of just the verb, while a compound predicate includes two or more verbs that share the same subject. For instance, in "The dog subject barks and runs compound predicate," both actions are linked to the same subject.