I'm not sure,I'm sure of / about,Are you sure (that) ~?

#. Are you sure that ~ 

~이 확실해?

 

Are you sure that this is the right way?

> Probably.

"Probably" is not good enough!  * 충분하지 않아

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Are you sure that this is your dog?

Are you sure that It's going to rain tomorrow?

Are you sure that you want to go?

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#. Are you sure (that) ~?

넌 ~라는 게 확실해?

 

Are you sure what he said that?

Are you sure you heard him right?

@ hear ~ right ~ 가 한 말을 제대로 듣다  Maybe I heard her right.

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#. I'm sure (that) ~ 

난 ~라고 확신해

 

I'm sure Jessica will be here soon.

I'm sure he has a feeling for you. 

I'm sure everything will be OK.

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#. I'm sure of / about  명사/동명사~ 

난 ~ 에 대해 확신해

 

I'm sure of it.

I'm sure of my love for him.

I'm sure of my choice.

Are you sure about that?

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#. I'm not sure ~ 

나는 ~ 인지 모르겠어 / ~ 인지 확신이 안서

 

I'm not sure (that) I follow you.

I'm not sure if I'm doing this right.

I'm not sure whether I'm doing this right or not.

I'm not sure what I should do.