Modal verbs – Modalverben – are a special group of verbs.
Use them to say:
|what you must do||müssen||to have to, must|
|what you are able to do||können||to be able to, can|
|what you want to do||wollen||to want (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 allowed to do||dürfen||to be allowed to, may|
|what you like||mögen||to like|