YOU SAID:

We'll meet again, don't know where. Don't know when.

INTO JAPANESE

また会おうどこか分からないいつだかわからない

BACK INTO ENGLISH

I don't know where. I don't know when.

INTO JAPANESE

どこにいるかわからないいつだかわからない

BACK INTO ENGLISH

I don't know where he is. I don't know when.

INTO JAPANESE

彼がどこにいるかわからない。いつだかわからない

BACK INTO ENGLISH

I don't know where he is. I don't know when.