1. He asked her about whether he should go
2. I'm not sure whether we can still go.
Hello,
In the first sentence, is it possible to rewrite the sentence without the preposition "about" eg: "He asked her whether he should go"
In the second sentence; is it possible to rewrite the sentence with the preposition "about" eg : "I 'm not sure about whether we can still go."
In both cases do both sets of sentences mean the same thing?
He asked her about whether he should go = He asked her whether he should go
I'm not sure whether we can still go. = I 'm not sure about whether we can still go
Thank you very much in advance.