We use imperative for giving orders or commands, making offers, suggestions, invitations Have a drink. Come in sit down. Two capsule with a glass of water. Relax, have fun. Pleas wait. Stop the...
It is imperative that you do your homework in order to get a good grade on your report card. If you smell smoke, it's imperative that you exit the building immediately! For those going on the field...
It is imperative that you find this out yourself. OR As nuclear weapons proliferate, preventing war becomes imperative. The requests grew more and more imperative. Does that help?