We have already learned that an adjective describes or gives more information about a noun. Similarly, an adverb describes or gives more information about a verb. An adverb also can be used to give more information about an adjective or another adverb.
Let us look at some examples.
We are learning English now.
They always do their homework.
Ahmed runs fast. (The word’Fast‘ is used to describe how Ahmed runs)
Ali runs very fast. (Here an adverb is used to describe another adverb. The word ‘very‘ is used to tell how fast Ali runs)