Tom Mary'ye söylemesi gerekip gerekmediğinden emin değildi.
- Tom wasn't certain whether or not he should tell Mary.
Tom Mary'ye söyleyip söylememesi gerektiğinden emin değildi.
- Tom was uncertain whether or not he should tell Mary.
... help me decide whether or not I want to go and look at those ...
... we were fighting about whether or not we were going to make sure that Americans had more ...