Elementary grammar: Learning nouns, verbs, adjectives and other parts ... For example, in the sentence 'Billy throws the ball,' 'throws' is the verb. Adverb: Modifies a verb, adjective, phrase, clause or another adverb. Adverbs can be found in various parts of a sentence but usually ends with '-ly.' For example, in the sentence 'Billy quickly throws the ball,' 'quickly' is the adverb.