Adjective any member of a class of words that in many languages are distinguished in form, as partly in English by having comparative and superlative endings, or by functioning as modifiers of nouns, as good, wise, perfect.
Adverb: any member of a class of words that in many languages are distinguished in form, as partly in English by the ending -ly, or by functioning as modifiers of verbs or clauses
Verb: any member of a class of words that are formally distinguished in many languages, as in English by taking the past ending in -ed, that function as the main elements of predicates, that typically express action, state, or a relation between two things
Linking verb: an equating verb (such as 'be' or 'become') that links the subject with the complement of a sentence.
Phrase: a sequence of two or more words that does not contain a finite verb and its subject or that does not consist of clause elements such as subject, verb, object, or complement, as a preposition and a noun or pronoun, an adjective and noun, or an adverb and verb.