What is an adverb? An Adverb is a word or group of words (phrase or clause) that modifies a verb, an adjective or another adverb. Adverbs are describing words or modifying words. 1. Adverbs as a word, phrase or clause She sang beautifully. (single word) The real estate agent came into the office. (Adverbial phrase) The disgruntled homeowner left when I came. … [Read more...]