"whether" and "if" - Are there any differences?
I think these can be interchangeable in most cases, but would you use "whether" / "if" in a particular situation that cannot be interchangeable?

Please give me examples and explain.

Question

"whether" and "if" - Are there any differences?
I think these can be interchangeable in most cases, but would you use "whether" / "if" in a particular situation that cannot be interchangeable?

Please give me examples and explain.

Answer

whether=if : i asked him if/whether he would come.
                    let's go and find out if/whether the museum is open.

whether can't replace if in conditional sentences: if it rains tomorrow, i'll stay at home.
                                      if i had money, i'd buy a car.

if doesn't replace whether: i'll do it whether you agree or refuse.
                                              i haven't decided whether to go or not.

Answer

Hi, this question has been asked before. For the best answer go to
http://www.italki.com/answers/question/34378.htm

Answer

In reported questions, these two words are EXACTLY the same.

"If" has other uses, but I think you know that already.