And one other comment to Ben, it is not proper grammar to use words like "could've." It should be "could have."
Whoever told you that is an idiot.
the spell check would have pointed out that could've was not a word if you had used the spell check.
could've is not a word according to the spell check. In fact, the only "'ve" word that doesn't get picked up by the spell check is would've.
that is what I was saying, thank you.
Seriously? The spell check doesn't think Obama is a word, should I not use it, then? Could've is a word, and you should've learned that when you were in kindergarten.