のを忘れないで

don't forget to

→ の
phrase Rare #25,828
don't forget to Follows an action to remind someone not to forget to do it.
JA: 窓を閉めるのを忘れないで。
EN: Don’t forget to close the window.

明日の朝私に会うのを忘れないで。

Don't forget to meet me tomorrow morning.

医者にもらった薬を飲むのを忘れないで。

Don't forget to take the medicine the doctor gave you.

この手紙を出すのを忘れないで下さいね。

Don't forget to mail this letter, okay?

傘を持って行くのを忘れないで。

Don’t forget to take an umbrella.

その手紙を投函するのを忘れないで下さい。

Please don't forget to mail that letter.

電気を消すのを忘れないで。

Don't forget to turn off the lights.

私に手紙を書くのを忘れないで。

Don't forget to write me a letter.

宿題をするのを忘れないで。

Don't forget to do your homework.