(grammar) An action verb which does not take a direct object.

(grammar) An auxiliary verb; a verb that accompanies the main verb in a clause.

A verb that does not follow the normal rules for its conjugation.

(grammar) A verb with an incomplete conjugation; for example, one that can only be conjugated in certain persons and numbers.

(linguistics) A verb used only in the infinitive or in the third person. In the third person, the subject is either implied or a dummy.

(grammar) A verb that requires (in the unmarked form) both a direct object and an indirect object so as to be grammatical.

Copula, copulative verb.

(grammar) a verb whose primary function is to express grammatical mood

A verb whose subject and direct object are the same.

(linguistics) A two-word verb, consisting of a verb and a "small" adverb or particle, that has an idiomatic meaning not easily predictable from the individual parts.