I'm afraid I have to remind you that time is up.恐怕我得提醒你時(shí)間到了.
Remember about it.別忘了這事.
Don't forgot to post the letter.別忘了寄信.
You haven't forgot about it,have you? 你沒(méi)有忘記這事，對(duì)吧？
May I remind you to help her with her report.請(qǐng)?jiān)试S我提醒您幫他完成報(bào)告這件事.