© 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.