what is a adverbial
An adverbial is a construction that modifies, or describes, verbs. When an adverbial modifies a verb, it changes the meaning of that verb. Word groups that are also considered to be adverbials can also modify verbs: for example, a prepositional phrase, a noun phrase, a finite clause or a non-finite clause.ll verb-or sentence-modifying adjuncts are adverbials, but some adverbials are not adjuncts. 1  If the removal of an adverbial does not leave a well-formed sentence, then it is not an adjunct. 2  If the adverbial modifies within a sentence element, and is not a sentence element in its own right, it is not an adjunct.