YOU SAID:
four days have passed
INTO JAPANESE
4 日間が過ぎた
BACK INTO ENGLISH
4 past days
INTO JAPANESE
4 日間
BACK INTO ENGLISH
4 days
INTO JAPANESE
4日
BACK INTO ENGLISH
4 Days
INTO JAPANESE
4日
BACK INTO ENGLISH
4 Days
You've done this before, haven't you.