YOU SAID:
no one knows what i am doing yesterday.
INTO JAPANESE
昨日何をしているのか誰にもわかりません。
BACK INTO ENGLISH
No one knows what you are doing yesterday.
INTO JAPANESE
昨日あなたが何をしているかは誰にもわかりません。
BACK INTO ENGLISH
No one knows what you are doing yesterday.
You've done this before, haven't you.
