Whether or if?

[Aeneus23]

Hi guys!
I've got a problem. Whats the difference between if and whether? but in particular I wanna know when i gotta use the first one and when the second one. Do you think it's right saying that "if" must be used at the starting of the sentence while "whether" in the middle of it?

[5jj]

Hi guys!
I've got a problem. Whats the difference between if and whether? but in particular I wanna know when i gotta use the first one and when the second one. Do you think it's right saying that "if" must be used at the starting of the sentence, while "whether" in the middle of it? NO

Try: Page 13 in: http://www.gramorak.com/Articles/If.pdf

[Aeneus23]

now verything is clear! so there's only a small difference between them! thank you!

[birdeen's call]

Try: Page 13 in: http://www.gramorak.com/Articles/If.pdf

Wow, thanks, I found the "Unless" section very helpful.