Observation

•  An adverb can come after a verb.

She walked slowly.

• An adverb can come between a helping verb and its main verb.

He has been quietly doing his homework in the corner since three o'clock.

• An adverb can come before an adjective.

The bag was extremely heavy

• An adverb can come before another adverb.

She talked very quietly.

• An adverb can come at the beginning of a sentence.

Unfortunately, he lost his wallet.

• An adverb can come at the end of a sentence.

He lost his umbrella, too