Does a complex sentence have two main clauses coordinating conjunction, one main clause, or main clause and subordinate clause(s)

Answer 1

A complex sentence consists of one main clause and at least one subordinate clause. The subordinate clause cannot stand alone as a complete sentence and is typically introduced by a subordinating conjunction (such as "because," "although," "if," etc.).

In contrast, a compound sentence contains two or more main clauses that are usually connected by coordinating conjunctions (such as "and," "but," "or," etc.).

So, to summarize:

• Complex Sentence: One main clause + one or more subordinate clauses.
• Compound Sentence: Two or more main clauses connected by coordinating conjunctions.