Types of Subordinate Clause - Noun, Adjective & Adverb Clause
https://studyandexam.com/types-of-subordinate-clause.htmlA subordinate clause that acts as an adverb in a sentence is called an adjective clause. Like an adverb, it modifies a verb, an adjective clause, or another adverb clause in the sentence. As a modifier, it gives more information about a verb of the main clause in terms of time, frequency (i.e., how often), condition, cause and effect relation, and intensity (i.e., to which extent).