Conditional Sentences

We can write conditional sentences (usually beginning with if) two ways. If the clause starts the sentence, put a comma after the statement. In the previous sentence, I gave you the example.

You don't need a comma if you end the sentence with a conditional clause. This is the second method. Ending with the conditional clause seems not to cause problems.

If I begin a sentence with if, 

I'll put a comma after the end of the clause or phrase.