What type of sentence has at least one independent and one one dependent clause?

A complex sentence contains at least one independent clause and at least one dependent clause. The independent clause expresses a complete thought and can stand alone, while the dependent clause cannot stand alone and typically begins with a subordinating conjunction. For example, in the sentence "Although it was raining, we decided to go for a walk," "Although it was raining" is the dependent clause, and "we decided to go for a walk" is the independent clause.