Compound Sentences

These sentences have two subjects and two main verbs:
 

These sentences use and, but, or.

Subject + Verb + ...(,) and (Subject) + Verb + ....
   
    Example:  Homer's mother went outside, and she was scared. OR
                     Homer's mother went outside and was scared. *

    Example:  Quentin helped him, and Homer built his second rocket.

 

Subject + Verb + ..., but Subject + Verb + ....
 

    Example:  The first rocket wasn't successful, but Homer didn't quit.

 

Subject + Verb + ..., or Subject + Verb + ....   

    Example:  They needed to learn how to weld, or they needed to get help from someone.

 

*If the subject is the same in both clauses, you do not need to repeat it. Also, do not use a comma.