Question

a verb only shows action

Answer 1

a word used to describe an action, state, or occurrence, and forming the main part of the predicate of a sentence, such as hear, become, happen.

Answer 2

any member of a class of words that function as the main elements of predicates, that typically express action, state, or a relation between two things, and that may be inflected for tense, aspect, voice, mood, and to show agreement with their subject or object.