Answer:
A compound sentence?
Explanation:
I don't really understand what you mean, but here are some examples of compound sentences.
Examples:
Joe waited for the train, but the train was late.
I looked for Mary and Samantha at the bus station, but they arrived at the station before noon and left on the bus before I arrived.
Mary and Samantha arrived at the bus station before noon, and they left on the bus before I arrived.
Mary and Samantha left on the bus before I arrived, so I did not see them at the bus station.
