It is an action verb.
what follows a linking or action verb
Action verb
Tumbled is an action verb.
Quiet is an action verb.
The easy way to recognize a linking verb is that a linking verb acts as an equals sign, the object of the verb is a different form of the subject (Mary is my sister. Mary=sister); or the subject becomes the object (My feet got wet. feet->wet).It would be difficult but possible to use 'started' as a linking verb, for example:The engine started itself. (engine = itself). or:She started the engine herself. This is not a linking verb because the object of the verb 'started' is 'the engine', not 'herself', the indirect object.Normally, 'started' is not a linking verb.
It is an action verb.
"Has been" is a present perfect tense verb form. It indicates an action that started in the past and continues into the present.
began is an action verb, not a linking verb.
"Has been" is a compound verb form that is used as the present perfect tense of the verb "to be." It indicates an action that started in the past and has continued up to the present.
"Sent" is an action verb. It shows an action, such as "she sent an email."
The helping verb "had" is used in the past perfect tense to show an action that was completed before another action in the past. For example, "She had finished her work before the meeting started."
what follows a linking or action verb
It is an action verb.
action verb
Action verb
Action verb