What is an adverbial clause in vernacular Chinese?

Adverbial clause An adverbial clause refers to a sentence that acts as an adverb when used as an adverbial. It can modify predicates, non-predicate verbs, attributes, adverbials or the whole sentence. According to its function, it can be divided into time, place, reason, condition, purpose, result, concession, way and comparison. Adverbial clauses are generally guided by conjunctions (subordinate conjunctions) and can also be caused by phrases. Clauses are usually separated from the main sentence by commas when they are located at the beginning or middle of the sentence, and they can be separated without commas when they are located at the end of the sentence.