It is an action verb.
began is an action verb, not a linking verb.
The verb in that sentence is completed.To complete something is an action and therefore a verb.Related verbs are complete, completes and completing, depending on the tense.
action verb because you did this action (sent)
what follows a linking or action verb
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