© 2017 Steve Campsall
the compound sentence (1)
The cat sat on the mat and the dog left the room.
A compound sentence is a sentence that contains two or more main clauses linked, most often, by one of the three coordinating conjunctions: 'and', 'but' or 'or'.
It is an important grammatical structure as it allows a writer or speaker to use a single sentence that combines and communicates two or more related ideas.