Modal verbs (moeten, mogen)

In Dutch, moeten means "must" or "to have to", expressing obligation or necessity. Mogen means "may" or "to be allowed to", expressing permission.

Like other modal verbs, their conjugations are slightly irregular in the singular forms:

PronounMoetenMogen
Ikmoetmag
Jij / Umoetmag
Hij / Zij / Hetmoetmag
Wij / Jullie / Zijmoetenmogen

Word Order and Obligations

Just like willen and kunnen, these modal verbs take the second position in a sentence, pushing the main verb to the end in its infinitive form.

The child has to be quiet.
Het kind moet stil zijn.

This rule applies to separable verbs, too. When paired with a modal verb, separable verbs like invullen (to fill in) or opstaan (to get up) aren't split up; the entire unseparated word goes to the end of the sentence.

Today I have to get up early.
Vandaag moet ik vroeg opstaan.
You have to fill in the form today.
Je moet vandaag het formulier invullen.

Asking Questions

In a yes/no question, the conjugated modal verb moves to the front of the sentence, while the main verb stays at the end.

Do I have to fill in the form now?
Moet ik het formulier nu invullen?

Asking and Denying Permission

Use mogen to ask if something is permitted.

Are we allowed to stop here?
Mogen we hier stoppen?

To state that something is not allowed, combine mogen with niet (not).

You are not allowed to stop here.
Je mag hier niet stoppen.
The dog is not allowed to walk on the grass.
De hond mag niet op het gras lopen.

Rules and Restrictions

Instead of using a modal verb, a rule (de regel) can be stated directly by declaring that an action is strictly forbidden (verboden).

Smoking is forbidden in this hotel.
Roken is in dit hotel verboden.
That rule is very strict.
Die regel is heel streng.

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