No.
Was is a past tense be verb.
Was not (wasn't) is a negative past tense be verb.
It is an action verb.
began is an action verb, not a linking verb.
what follows a linking or action verb
"Sent" is an action verb. It shows an action, such as "she sent an email."
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
It is an action verb I was here He was there