Te Inside Separable Verbs (om op te bellen)

You already know that a Dutch separable verb splits apart in a main clauseIk bel hem morgen op ("I'll call him tomorrow"). This page covers the one other place the verb splits, and it catches almost every English speaker off guard: when the verb appears as a te-infinitive, the little word te does not sit in front of the verb the way English "to" does. It burrows inside the verb, landing neatly between the particle and the stem. Opbellen becomes op *te bellen; *meegaan becomes mee *te gaan*. Once you see why this happens, it stops feeling like a special rule and starts feeling like the natural consequence of what a separable verb actually is.

The particle and the verb split around te

A separable verb is really two pieces glued together: a particle (op-, mee-, aan-, schoon-, dicht-) and a verb (bellen, gaan, doen, maken). The glue is weak. Whenever Dutch grammar inserts something into the verb slot, the particle slides off the front and the inserted material goes in between. In the perfect tense that inserted material is ge- (opgebeld). With the te-infinitive, the inserted material is te, and it lands in exactly the same spot.

Ik probeer hem op te bellen.

I'm trying to call him.

Het is tijd om op te staan.

It's time to get up.

Hij vergat de deur dicht te doen.

He forgot to close the door.

Read those three aloud and notice the shape: particle — te — verb, written as three separate words. op te bellen, op te staan, dicht te doen. The particle keeps its meaning and its stress (ÓP te bellen), te is an unstressed schwa wedged in the middle, and the verb stem comes last. This is the single most important pattern on the page, so it is worth saying plainly: with a separable verb, te splits the verb in two.

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The test for whether you've placed te correctly: can you point at the particle on its own, with te clearly after it? In op te bellen you can. If you've written te opbellen, the particle is trapped in front of te — and that is exactly the mistake to avoid.

More separable verbs in the te-form

The pattern is completely regular across every separable verb, no matter what the particle is. Here are several common ones so the shape sinks in:

InfinitiveMeaningte-form
opbellento phoneop te bellen
meegaanto come alongmee te gaan
schoonmakento cleanschoon te maken
aankomento arriveaan te komen
uitleggento explainuit te leggen
afsprekento arrange/meet upaf te spreken
opruimento tidy upop te ruimen
weggooiento throw awayweg te gooien

Zonder iets te zeggen liep ze de kamer uit, zonder mee te gaan.

Without saying anything she walked out of the room, without coming along.

We hebben afgesproken om de hele zolder samen schoon te maken.

We've agreed to clean the whole attic together.

Het is moeilijk om dat in één zin uit te leggen.

It's hard to explain that in one sentence.

Notice that any object or extra words belonging to the verb come before the whole particle-te-stem block, not in the middle of it. You say om de kamer schoon te maken ("to clean the room"), never om schoon de kamer te maken. The particle stays welded to its own little unit at the end.

Inseparable verbs keep te in front of the whole word

Here is the diagnostic value of all this. Not every verb that starts with a prefix-like syllable is separable. The six unstressed prefixes be-, ver-, ge-, ont-, her-, er- are inseparable — they never come off the front of the verb (see Inseparable Prefixes). And because they never split, te has no gap to slot into. It simply sits in front of the whole, unbroken word, exactly the way English "to" does.

Ik ga proberen het nog een keer te herhalen.

I'm going to try to repeat it one more time.

Het is niet nodig om alles opnieuw te vertellen.

There's no need to tell everything again.

Ze beloofde de regels uit te leggen en ze daarna te herhalen.

She promised to explain the rules and then repeat them.

Look closely at that last example — it lines up the two systems side by side. Uitleggen is separable, so te goes inside: uit te leggen. Herhalen is inseparable, so te stays out front: te herhalen. Same sentence, two behaviours, and the only thing that decides it is whether the verb's first chunk is a true separable particle or one of the six fixed prefixes.

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This gives you a fourth, foolproof test for separability, alongside the present-tense split, the ge- in the participle, and the stress pattern. Put the verb in a te-clause: if te can wedge in (op te bellen), it's separable; if te has to stay in front (te herhalen), it's inseparable. The verb tells you which kind it is by where it lets te go.

A note on the dual-stress verbs

A handful of prefixes — voor-, over-, onder-, door-, om-, aan- — go both ways, and the te-form follows the stress. The separable, prefix-stressed member splits, so vóórkomen "to occur" gives om vóór te komen (te wedged inside). The inseparable, root-stressed member doesn't split, so voorkómen "to prevent" keeps te out front: om te voorkómen. One verb on paper, two te-placements — decided entirely by the stress. Because this is genuinely tricky, it has its own page: see Prefixes That Go Both Ways. For now, just register that the te-placement is one more thing those minimal pairs disagree on.

Common Mistakes

The errors below are the ones English speakers make over and over, almost always because English keeps "to" in one fixed place and Dutch does not.

❌ Ik probeer om te opbellen hem.

Incorrect — te left in front of the whole separable verb, and the object misplaced.

✅ Ik probeer hem op te bellen.

I'm trying to call him.

❌ Het is tijd om te opstaan.

Incorrect — opstaan is separable, so te can't sit in front.

✅ Het is tijd om op te staan.

It's time to get up.

❌ Hij vergat de deur te dichtdoen.

Incorrect — dichtdoen splits; te must go inside.

✅ Hij vergat de deur dicht te doen.

He forgot to close the door.

❌ Het is moeilijk om uitteleggen dat.

Incorrect — te is glued into one word, and the object is in the wrong place.

✅ Het is moeilijk om dat uit te leggen.

It's hard to explain that.

❌ Ze beloofde de regels uit te leggen en te herhalen ze.

Incorrect — the inseparable te-form is right, but the object pronoun is stranded at the end.

✅ Ze beloofde de regels uit te leggen en ze te herhalen.

She promised to explain the rules and repeat them.

The thread running through every correction is the same: with a separable verb, te lives inside the verb (op te bellen, dicht te doen), written as three separate words; with an inseparable verb, te stays in front (te herhalen, te vertellen). Get that distinction reflexive and the rest of the te-system falls into place.

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Related Topics

  • Separable Verbs: OverviewA2What separable verbs are, how to recognise them by stress (ÓPbellen, not opBELlen), and how the particle behaves across infinitive, present, and participle — the hub for every separable-verb page.
  • The Te-Infinitive: OverviewB1When a second verb takes the infinitive marker te and when it stays bare — modals and gaan/komen/laten/zien/horen/blijven take a bare infinitive, most other governing verbs require te.
  • Om ... te: Purpose and BeyondB1The om...te construction for purpose ('in order to'), plus its obligatory uses after degree adjectives (te moe om te werken) and evaluative adjectives (leuk om te zien).
  • Inseparable Prefixes: be-, ver-, ge-, ont-, her-, er-B1The six unstressed prefixes that never split off, take no ge- in the participle, and keep te in front of the whole verb — with the systematic meanings of ver-, ont-, and her-.
  • Prefixes That Go Both Ways (voorkomen, ondergaan, doorlopen)C1The prefixes voor-, over-, onder-, door-, om-, aan-, achter-, mis- that can be separable or inseparable — where stress and separability together flip the meaning, as in vóórkomen 'occur' vs voorkómen 'prevent'.
  • Verb-Final Order in Subordinate ClausesA2After a subordinating conjunction, relative pronoun, or question word, the entire verb cluster — including the finite verb — moves to the end of the clause.