Here's why:
* Predicates describe the subject. The subject is typically a noun or pronoun, but the predicate can be other things, like adjectives, adverbs, or prepositional phrases.
* Predicate verbs: The predicate always contains a verb, which can be a single word or a verb phrase.
* Complements: Sometimes, a predicate will contain a complement, which can be a noun, pronoun, adjective, or adverb that completes the meaning of the verb.
Examples:
* The cat is sleeping. (Subject: cat, predicate: is sleeping, verb: sleeping)
* The sun shines brightly. (Subject: sun, predicate: shines brightly, verb: shines, complement: brightly)
* The old man feels tired. (Subject: man, predicate: feels tired, verb: feels, complement: tired)
Key Point: While predicates often include nouns or pronouns (as complements), they don't always. The most important element is the verb, which describes the action or state of being of the subject.