YOU SAID:

before I leave should I close the door

INTO JAPANESE

出発する前にドアを閉めたら

BACK INTO ENGLISH

If you close the door before you leave

INTO JAPANESE

出かける前にドアを閉めたら

BACK INTO ENGLISH

If you close the door before you go out

INTO JAPANESE

外出する前にドアを閉めたら

BACK INTO ENGLISH

If you close the door before you go out