What is an adverb clause?

An adverb clause is a dependent clause that functions as an adverb in a sentence. It provides additional information about the verb, adjective, or adverb in the main clause. Adverb clauses typically answer questions such as how, when, where, why, or to what extent. They can also indicate conditions, contrasts, or concessions.

Adverb clauses are introduced by subordinating conjunctions such as after, although, as, because, before, if, since, though, unless, until, when, where, while, etc. These conjunctions help connect the adverb clause to the main clause and show the relationship between the two.

For example:
1. She will go to the party after she finishes her work. (after she finishes her work is an adverb clause that tells when she will go to the party)
2. He ran faster than I expected. (than I expected is an adverb clause that tells to what extent he ran faster)
3. I will go to the beach if it doesn't rain. (if it doesn't rain is an adverb clause that indicates a condition)

Adverb clauses can be placed at the beginning, middle, or end of a sentence, depending on the emphasis or the flow of the sentence. It is important to note that adverb clauses cannot stand alone as complete sentences and must be connected to a main clause to make sense.