Example sentences

1. 電気を消すのを忘れないで。

   Don't forget to turn the light off.

2. 退社前に電灯や暖房器を消すことになっている。

   You are expected to put out lamps and heaters before you leave the office.

3. 寝る前に明かりを全部消すのを忘れないように。

   Don't forget to turn off all the lights before going to bed.