Sentence examples for i'm not sure whether from inspiring English sources

The part of the sentence "I'm not sure whether" is correct and usable in written English.
You can use it when you want to express uncertainty regarding a choice. Example: I'm not sure whether I should take the job or continue my studies.

Exact(59)

I'm not sure whether he did either.

The Guardian - Film

"I'm not sure whether to believe him".

The Guardian - Books

I'm not sure whether that will happen.

The New York Times

I'm not sure whether that's a change or not.

The New York Times

I'm not sure whether the number of backers really matters.

The Economist

I'm not sure whether to celebrate or mourn the milestone.

Independent

I'm not sure whether to laugh or salute them.

Independent

I'm not sure whether these games have increased my intelligence.

The New York Times - Tech

"I'm not sure whether I'm retired or not," he said.

The New York Times - Arts

I'm not sure whether I will celebrate if I score.

The Guardian - Sport

I'm not sure whether they still say that.

The Guardian

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