Breakdown of Ik moet mijn telefoonnummer invullen.
moeten
to have to, must
invullen
to fill in
het telefoonnummer
the phone number
Questions & Answers about Ik moet mijn telefoonnummer invullen.
Does moet mean "must" or "have to"?
It means both! English uses "must" for strong obligation and "have to" for general rules, but in Dutch, moeten covers both. So Ik moet translates perfectly to "I have to" in this context.
Why is invullen at the very end of the sentence?
When you use a modal verb like moeten, it takes the normal verb spot (second position) in the sentence. The main action verb (invullen) gets pushed all the way to the end and stays in its full, dictionary form (the infinitive).
Invullen means "to fill in". Why isn't it split into two words here?
Normally, invullen is a separable verb that splits up in a simple sentence (like Ik vul mijn nummer in). However, because the modal verb moeten pushes the main verb to the end as a full infinitive, it stays glued together as a single word: invullen.
Why is telefoonnummer written as one long word?
In Dutch, when you combine two nouns to make a new one (telefoon + nummer), you write them together without a space. This is a strict rule in Dutch, unlike in English where we usually keep a space in "phone number".
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