Anfänger 1 - Modal- und Hilfsverben

to be able to do somehing, make something, etc.

können

used to say what is suitable, right, etc., particularly when one is disapproving of something

[Konjunktiv von "sollen"]

(auxiliary) used with the past participle form of a verb when forming the passive voice

sein, werden

(auxiliary verb) used in forming interrogative and negative sentences

tun, haben

used to show that something is very important and needs to happen

müssen