ihr dürft you may, you are allowed to (plural, informal) Sie dürfen you may, you are allowed to (singular or plural, formal) sie dürfen they may, they are allowed to ...

what you are supposed to do/what you should do/what you ought to do (It often means 'shall', eg shall/should I help you?) sollen to be supposed to, ought, should what you may do/what you are ...