彼が今度いつ来るかはっきりとは知らない。の英語

I am uncertain when he will come next.

I do not know for certain when he will come.

I don't know when he'll come again.

I don't know for certain when he will come.

I don't know for certain when he will arrive.

I don't know for certain when he will come.

I don't know for certain when he'll come back.

I'm not sure when he'll come back.

I am not sure when he will come.

I'm not sure when he'll come.

I don't know for certain when he will come.

I don't know for certain when he will arrive.

I don't know exactly when he'll be back.

I don't know for certain when he will come.

I don't know when he will come.

I don't know exactly when he will arrive.

I don't know when he will come.

I don't know when he's coming.

I don't know when he'll come.

I don't know when he'll come next time.

I'm not sure as to when he will turn up.

I'm not sure when he'll turn up.

There is no telling what time he will come.

I don't know when he'll come next time.

I don't know when he will come.

I don't know when he'll come.

I don't know exactly when he will arrive.

I don't know when he will come back.

I don't know when he'll come back.

I don't know when he will come back.