YOU SAID:
Every week is a new week, but you never know the new day.
INTO JAPANESE
毎週は新しい週ですが、新しい日は決してわかりません。
BACK INTO ENGLISH
Every week is a new week, but I never know a new day.
INTO JAPANESE
毎週は新しい週ですが、私は新しい日を決して知りません。
BACK INTO ENGLISH
Every week is a new week, but I never know a new day.
You've done this before, haven't you.