Reminding someone to do something

There are many situations when you ask somebody to do something and later you think that they didn't remember to do it. Here are some phrases that you can use to remind them.

Don't forget to do it.
Remember to do it.
You will remember to do it.
You won't forget to do it, will you?
Can/Could I remind you to...?
I'd like to remind you about...
You haven't forgotten about __, have you?
I hope you haven't forgotten to...
Sorry to be a bore but do remember to...
May I remind you/all passengers that...

Explanations

• In phrase 1, the stress is on the word "Don't" and in phrase 2 the stress is on "mem" in the word "remember".
• In phrase 3, you need to put stress on the word "will".
• In phrase 4, you need to put stress on the word "won't".
• Phrases 5 and 6 are little more polite and could be used with somebody who you don't know very well.
• You use phrases 7 and 8 when you think the other person has forgotten and it is almost too late. If they haven't forgotten, they may get angry, so be careful.
• Phrase 9 has an apology at the beginning which makes it slightly more polite.
• Phrase 10 is formal and is safe to use with strangers, with groups of people and in customer service situations.
• After phrases 1,2,3,4,5,8,9 we use the infinitive form. For example: Don't forget to check your grammar.
• After phrases 6 and 7, you need to use a noun or a noun phrase. For example: I'd like to remind you about the party tomorrow night.
• After phrase 10 we use a clause (mini sentence). For example: May I remind all passengers that smoking is not allowed.