Ik moet morgen vroeg opstaan.
English: I have to get up early tomorrow.
In Dutch, a modal infinitive is when you use a modal verb (such as kunnen, moeten, mogen, willen, zullen, laten, hoeven, durven) together with another verb in the infinitive form. This is common in sentences where one verb expresses possibility, necessity, permission, or intention, and the second verb shows the main action.
Use modal infinitives in Dutch to talk about abilities, obligations, permissions, wishes, or possibilities. They are also used when expressing that something does not need to happen (with 'hoeven').
Ik moet morgen vroeg opstaan.
English: I have to get up early tomorrow.
Jij mag hier niet parkeren.
English: You are not allowed to park here.
We kunnen samen koken.
English: We can cook together.
Zij wil Nederlands leren.
English: She wants to learn Dutch.
Je hoeft niet te komen.
English: You don't have to come.