Where do we use whether and if?
Where do we use whether and if? The formal rule is to use "if" when you have a conditional sentence and "whether" when you are showing that two alternatives are possible. Some examples will make this more clear. Here's an example where the two words could be interchangeable: Squiggly didn't know whether Aardvark would arrive Friday. Can you confirm whether or if? New Member. Neither "confirm whether" nor "confirm if" is correct. "Whether" and "if" include a notion of uncertainty that is inconsistent with the meaning of "confirm". It is always "confirm that". How do you use whether in a...