Yes, He's dizzy (He is dizzy) is a correct sentence. He is the subject, is is the verb (linking), and dizzy is a predicate adjective.
NO. It's an adjective
It is an action verb.
The word dizzy is mostly an adjective.However, when used as a transitive verb the past tense is dizzied.
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