Answer: An adverb usually modifies by telling how, when, where, why, under what conditions, or to what degree.
Explanation: A word that modifies a verb, adjective, or another adverb is called an adverb. In most cases, an adverb modifies by stating how, when, where, why, under what circumstances, or to what extent. Adding -ly to an adjective is a common way to create an adverb.
