A complex sentence is a sentence that contains one independent clause and at least one dependent clause, which are connected to each other with a subordinating conjunction
. An independent clause is a phrase that can stand alone as a sentence, while a dependent clause cannot form a sentence on its own
. Subordinating conjunctions, such as "because," "since," or "while," are often used to connect the clauses in a complex sentence
. Complex sentences are useful for providing more information to explain or modify the main point of a sentence
