"We missed our plane because we were late."What kind of sentence is this?

Explanation

A sentence that has at least two independent clauses and at least one dependent clause is a compound-complex sentence. A sentence with one independent clause with no dependent clauses is a simple sentence. A complex sentence has an independent clause and at least one dependent clause. A compound sentence has at least two independent clauses. A complex sentence consists of an independent clause plus a dependent clause. (A dependent clause starts with a subordinating conjunction or a relative pronoun, and contains a subject and verb, but does not express a complete thought.) We missed our plane because we were late.