Hi
Is this sentence correct?
He is not sure whether or not he looked [STRIKE]at[/STRIKE] in his side mirror or whether or not he [STRIKE]shoulder-checked[/STRIKE] looked over his shoulder before he turned into New York Street
To me, it makes a messy sentence, particularly having "not" twice in the first seven words. He seems to be unsure if he did either of the things mentioned (looked in his side mirror or looked over his shoulder).
I see nothing wrong with:
He's not sure if he looked in his wing mirror (side mirror)........
In order to use whether, there should be a choice between two things he might have looked in:
He's not sure whether he looked in his side mirror or his rearview mirror before he....
However, I'm not quite clear if he is unsure about one thing or two. Does he think he definitely did one of those things, but he can't remember which one? Or is he not sure that he did either of them?
