"Playful" is an adjective, not a noun or a verb. It describes someone or something that is full of play, fun, or humor.
It is an action verb.
The word playful is the adjective form for the verb to play; the word play is also a noun.The noun form for the adjective playful is playfulness.
began is an action verb, not a linking verb.
"Sent" is an action verb. It shows an action, such as "she sent an email."
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.