No, "concerned" is not an action verb; it is typically used as an adjective. It describes a state of being or a feeling of worry or interest about something. In some contexts, "concern" can function as a noun or as a verb in its base form (to concern), which indicates an action, but "concerned" itself does not express an action.
It is an action verb.
The verb in the phrase "are you concerned about air pollution" is "are." It is a form of the verb "to be," which serves as a linking verb in this context, connecting the subject "you" to the adjective "concerned."
began is an action verb, not a linking verb.
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