what is an verb adverb, action verb and how to use in a sentence

Answer 1

Verbs show action or state of being.

Linking verbs (state of being verbs) link the subject with its synonym or an adjective in the predicate.

Examples:
She IS a great teacher.
This SEEMS difficult.

Action verbs show action.

Examples:
The girls WERE JUMPING rope.
I THINK you are right.
We WENT to Grand Canyon.

Adverbs describe verbs, adjectives and other adverbs. They tell when, where, why, how, and to what extent.

Examples:
He USUALLY comes home about four o'clock.
The skaters moved QUICKLY.
I've NEVER heard of that movie.

http://www.englishclub.com/grammar/parts-of-speech.htm