YOU SAID:
寝る前に電気を消すことを忘れないでください。
INTO JAPANESE
寝る前に電気を消すことを忘れないでください。
BACK INTO ENGLISH
Remember to turn off the lights before going to bed.
INTO JAPANESE
寝る前に明かりを消すことを忘れないでください。
BACK INTO ENGLISH
Remember to turn off the lights before going to bed.
That didn't even make that much sense in English.