YOU SAID:
I'm not sure who you are, will you tell me?
INTO JAPANESE
あなたが誰なのかわかりませんが、教えていただけますか?
BACK INTO ENGLISH
I don't know who you are, can you tell me?
INTO JAPANESE
あなたが誰なのかわかりませんが、教えていただけますか?
BACK INTO ENGLISH
I don't know who you are, can you tell me?
You've done this before, haven't you.