What is the subject of a sentence?
Who or what the sentence is about; whoever is doing the action or predicate.
What is the predicate of a sentence?
Whatever the subject is doing; the verb.
What is a compound subject?
A sentence with two or more subjects or nouns.
What is a compound predicate?
A sentence with two or more predicates combined with and, or, but; two or more verbs.
Essential parts of a sentence