Multiple choice Directions: Choose the correct part of speech for the underlined word(s). Sing a song. noun adverb adjective pronoun verb Reveal answer Fill a bubble to check yourself E Correct answer Explanation Sing is a verb because it expresses an action - the act of producing musical sounds with voice. In this imperative sentence, 'Sing' is the main verb telling someone what to do. Verbs express actions, states, or occurrences.