I'm not sure if (subject + verb)
♦ 'I'm not sure' expresses a feeling of uncertainty or lack of confidence on a particular matter.
Examples:
- I am not sure if they will offer me the job.
- I'm not sure if she'll return my call.
- I'm not sure if my wife will understand.
- I'm not sure if we will go out tonight.
- I'm not sure if I understand your question.
- I am not sure if I can handle it.
- I am not sure if it will happen.
- I am not sure if it will matter.
- I am not sure if my mom will notice.
- I am not sure if they will permit us to park there.
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