Yes, "leaving" is considered an action verb. It describes the act of departing from a place or situation. In grammar, action verbs convey physical or mental activities, and "leaving" fits this definition as it indicates a movement or change of state.
Secede is a verb. It is the action of leaving a larger group.
I will look for my keys before leaving the house.
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.