You will see Americans abuse the language in MANY ways, but should you teach students that this is okay? Of course not.
When two complete sentences are joined into one, it should be done with a semicolon (rarely) or a comma and coordinating conjunction. An exception can be made when both of the sentences are very short and the meaning is clear.
How important is it to use a comma before a coordinating conjunction in writing these days?
You will see Americans abuse the language in MANY ways, but should you teach students that this is okay? Of course not.
When two complete sentences are joined into one, it should be done with a semicolon (rarely) or a comma and coordinating conjunction. An exception can be made when both of the sentences are very short and the meaning is clear.