German Modal Verbs Practice
Type the conjugated modal for each sentence and check straight away. The six modals cover most of what you need to say you can, must, may or want to do something. No signup required.
Ich ___ (wollen, past) sprechen.
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Build my study planWhat actually trips people up
Modal verbs are irregular in the singular and regular in the plural, and they push the main verb to the end of the sentence. Those two facts cause almost every mistake at A2, and both are things you can only fix by producing the forms, not by reading them.
The singular changes its vowel, the plural does not
können becomes ich kann, du kannst, er kann — then wir können, ihr könnt, sie können, straight back to the infinitive stem. Learning the singular as its own small set is faster than treating all six as one pattern.
The main verb goes to the end, as a bare infinitive
"Ich muss heute arbeiten", not "Ich muss arbeite heute". The modal takes position two and everything else sits between it and the verb at the end. This is the Satzklammer, and it is the same bracket the perfect tense uses.
sollen and müssen are not interchangeable
müssen is pressure from circumstances — you need the money, so you have to work. sollen is pressure from a person — your boss said so. English blurs both into "have to", which is why this pair stays wrong long after the forms are right.
Where to look the forms up
All six modals, in every person and both tenses, plus the Perfekt forms that behave oddly, are on one page: the German modal verb forms.