Yes it is because you are doing something.
It is an action verb.
what follows a linking or action verb
Action verb
It is an action verb. To include someone means to allow them to join in or participate. A helping verb refers to a verb that "helps" or extends the meaning of the main verb. In other words, it helps to form a future tense (I will include him in my class if he promises to study hard: the helping verb is "will"); or it helps to form a past tense (I had included him in my class, but then he dropped the course: the helping verb is "had").
Tumbled is an action verb.
It is an action verb.
began is an action verb, not a linking verb.
Learn is a verb.
what follows a linking or action verb
action verb because you did this action (sent)
It is an action verb.
action verb
Action verb
Action verb
An action verb
The verb stay is an action verb.
Yes,waiting is a action verb