The verb phrase (VP) in English has a noticeably different structure, since the information it carries about mood, tense, modality, aspect, and voice is quite different from the information carried by a noun phrase. The verb phrase has two functional parts,
the auxiliary, a grammatical morpheme carrying information about mood, tense, modality, and voice; and
the main verb, a lexical morpheme carrying its lexical information and, usually, an inflection.