Don't forget to

#.  Don't forget to ~

~하는 것을 잊지 마. 잊지 말고 ~ 해

 

Don't forget to brush your teeth.

> Can't I just go to sleep today?  @ can't I ~하면 안돼요?

No. You have to do it every day.

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Don't forget to lock the door.

Don't forget to fasten your seatbelt.

Don't forget to write back to me. 답장하는 거 잊지 마

Don't forget to change your PIN number.

Don't forget to drink lots of water.

Don't forget to your wallet / call me / take your medicine / buy his gift.

Don't forget to wake me up at 7.

Don't forget to put on sunscreen.

Don't forget to put sunscreen on your face.

Remember to put sunscreen on your face.