How to ask uncertainly

bagaimana menanyakan yang tidak pasti?

Answer:
_________

How to ask uncertainly
(Bagaimana cara bertanya tentang ketidakpastian)

To ask for uncertainty we can use some of the following phrases:
=> Are you not sure to come to his birthday party?

Answers:
I am not certain that i will come there
I am not sure about it.

*Thanks*