YOU SAID:

I don't know when he'll get here, though.

INTO JAPANESE

しかし、彼がいつここに来るかはわかりません。

BACK INTO ENGLISH

But I don't know when he will be here.

INTO JAPANESE

彼がここへいつ来るかは分かりません。

BACK INTO ENGLISH

I don't know when he will be here.

INTO JAPANESE

彼がここへいつ来るかは分かりません。

BACK INTO ENGLISH

I don't know when he will be here.