The four types of verbs are action verbs, linking verbs, helping verbs, and primary auxiliaries.
Action verbs are words that express an action. For example, run, jump, kick, and swim.
Linking verbs are words that connect the subject of a sentence to a word or phrase that describes or identifies the subject. For example, the verb “be” is a linking verb.
Helping verbs are words that help express the action or linking verb. For example, the words “can,” “could,” “may,” and “might” are all helping verbs.
Primary auxiliaries are the verbs “be,” “have,” and “do.” They are used to create different tenses of verbs.