What is an adeverbial clause?

An adverbial clause is a group of Words that functions as an adverb within a sentence, providing context such as time, reason, condition, or manner. It typically contains a subject and a verb and is introduced by subordinating conjunctions like "because," "although," "if," or "when." For example, in the sentence "She sings beautifully when she is happy," the clause "when she is happy" is an adverbial clause that modifies the verb "sings."