YOU SAID:

I dont know what you are talking about

INTO JAPANESE

私はあなたが何について話しているのかわからない

BACK INTO ENGLISH

I do not know what you are talking about

INTO JAPANESE

何のことかわからない

BACK INTO ENGLISH

I do not know who you are talking about.

INTO JAPANESE

何のことかわからない

BACK INTO ENGLISH

I do not know who you are talking about.