No. It's a helping verb. You can't stand up and "can".
Correct: I can run a mile in less time than you just did.
It is an action verb.
began is an action verb, not a linking verb.
action verb because you did this action (sent)
what follows a linking or action verb
An action verb
Action verb
It is an action verb.
Action verb
action verb
The verb stay is an action verb.
No linking verb
No, an action verb would be like blowed.. Wind is not an action verb.