Modal verbs: müssen

müssen - to have to/ must

Present Tense		Imperfect Tense
ich muss	I have to/ must	ich musste	I had to
du musst	you have to	du musstest	you had to
er/sie/es muss	he/she/it has to	er/sie/es musste	he/she/it had to
wir müssen	we have to	wir mussten	we had to
ihr müsst	you (pl) have to	ihr musstet	you (pl) had to
sie müssen	they have to	sie mussten	they had to

Past Participle: gemusst

Example:

Er muss auf Arbeit gehen.                                  He must go to work.

Sie müssen das Zimmer aufräumen.                 They have to tidy up the room.

Task

Learn the forms.