Learn Hardcore Dutch: Ik ga de trappen af naar de kelder om spullen op te halen. - I go down the stairs to the basement to pick up some things.

It means “down the stairs.” In this construction, the separable verb afgaan (“to go down”) is split, so de trappen af literally indicates that the action is happening by descending the stairs.

Why is the verb split into ga and af instead of being written together?

Dutch uses separable verbs. The full verb here is afgaan, meaning “to go down.” In the present tense, the conjugated part (ga) comes right after the subject, while the separable prefix (af) is positioned at the end of the clause.

What is the function of the phrase om spullen op te halen in the sentence?

This phrase explains the purpose of the action. The word om introduces an infinitive clause that shows why the speaker is going down the stairs—that is, to pick up stuff.

How does the prepositional phrase naar de kelder function?

It indicates direction or destination. The preposition naar translates as “to,” and de kelder means “the basement,” so together they explain where the action is taking place.

What does spullen mean, and why isn’t it preceded by an article?

Spullen means “stuff” or “items.” It is used in a general, non-specific sense here, which is why it appears without an article—this is common in Dutch when referring to unspecified objects.

Why is the infinitive clause formed as op te halen rather than te halen op?

The order op te halen follows the rules for separable verbs in an infinitive construction. When adding te to the infinitive halen (with the separable prefix op), the particle op stays before halen. Changing the order would break the standard Dutch syntax for such verbs.