An adverb is a word that modifies verbs, adjectives, and other adverbs within a sentence. Sometimes adverbs modify a clause or an entire sentence. The most frequently recognized adverbs end in -ly.
Adverbs often describe a verb by telling how, how much, how often, when, or where the verb is done.
Adverbs most commonly modify verbs . They describe the action of the verb. He ran quickly . The adverb quickly modifies the verb ran . It describes how he ran.