Linking Verb: A linking verb is a verb that connects the subject of a sentence to the complement. It is sometimes called a copula or a copular verb. An example is the word is in the sentence "The sky is blue".
Action Verb: An action verb is a verb that expresses physical or mental action. The action verb tells us what the subject of our clause or sentence is doing-physically or mentally. Examples of Action Verbs: To find an action verb: 1) Find the word in the sentence that is something someone or something can do.