For example, I found the following sentence written by a native English speaker (UK) so I'm going to assume that he knows how to put it the right way, although I wouldn't use this form. I now have ...
Possible Duplicate: Is the question mark misused in affirmative sentences? Is it correct to use "if" in this way? I want to know if I can borrow your car?
This may be related to a general grammar rule, but which of these is correct? I wonder if Steve Jobs will be giving the keynote speech at WWDC this year? or I wonder if Steve Jobs will be ...