what is an adverbial clause? Share with your friends Share 0 Job Jacob answered this like a single-word adverb, an adverbial clause describes a verbplease give a thumbs up 2 View Full Answer Rishita Nath answered this ADVERBIAL CLAUSE does the work of an adverb in a sentence modifying a verb , adjective or another adverb. 0 Sakthi G answered this Okay 1 Nora answered this jbki 1