唔好唔XX.....英文可怎講?

You can simply say, "Don't forget...."

唔好唔叫我去食中午
Don't forget to ask me out to lunch.

唔好唔知會我
Don't forget to inform me

唔好唔記得上班時間
Don't forget the working hours

Or with emphasize: 唔好唔XX is a negative-negative sentence, so it turns out to a positive one

唔好唔叫我去食中午
Do ask me out to lunch (Just like, do not not ask me to lunch, 2 negatives can be cancelled out)

唔好唔知會我
Do inform me

唔好唔記得上班時間
Do remember the working hours

(1)Will you tell me;
---Will you leave me a message;
---Will you be kind enough;
---Will you be good enough;
---Will you kindly;
---How about pass on...
---How about give me a...

(2)lunch time;
---to inform/to instruct/to notify
---office hour