It is used to tell you what the subject of the sentence does.
Definition Of A Simple Predicate. The predicate is the part of a sentence that tells us about the subject. This page has lots of examples of predicates and an interactive test.
A predicate completes an idea about the subject, such as what it does or what it is like.
A predicate can either be simple or complete. The simple predicate is the verb part of the verb phrase. Similarly simple predicates may also be identified in longer sentences as. This is a verb phrase in a simple or compound tense form 2.