Common Grammar and Usage Mistakes

Comma Splice

A comma splice is the incorrect use of a comma to connect two independent clauses. (Recall that an independent clause is a phrase that is grammatically and conceptually complete: that is, it can stand on its own as a sentence.) To correct the comma splice, you can:

• replace the comma with a period, forming two sentences
• replace the comma with a semicolon
• join the two clauses with a conjunction such as "and," "because," "but," etc. 

taken from : englishchick.
Example:

I like Xena, she is very sexy.

INCORRECT

I like Xena. She is very sexy.

CORRECT

I like Xena; she is very sexy.

CORRECT

I like Xena, because she is very sexy.

CORRECT