These words are commonly used to
- (create a compound sentence) My mother prepared lasagna, and I baked a chocolate walnut cake.
- (create a compound subject) He will become a biologist or a lawyer.
- (create a compound verb) Lee photographed and described the event.
- (create a compound object) Amanda did not give him the address nor directions.
NOTE: Using correct punctuation helps to avoid sentence errors such as fused sentences and comma splices.