remember to do sth
1. Resolve to perform what you ought; perform without fail what you resolve.
2. Are you quite clear in your own mind what you ought to do?
3. How do I know what to do and what not to do?
On October29 th, Israeli paratroopers, led by a zealous officer called Ariel Sharon, were dropped into Sinai to fulfil their side of the bargain.
it's time for sb to do sth