This is one of the genuinely alien corners of Dutch for an English speaker, and it is worth slowing down for. In English you happily say "I'm proud of it," "what are you waiting for?", "the box I keep them in." Dutch does something English never does: when the object of a preposition is a thing rather than a person, it refuses to use a normal pronoun after the preposition. You cannot say op het or met dat or van het. Instead Dutch fuses a special pronoun-adverb (er, hier, daar, waar) with the preposition into a single word — erop, daarmee, waarvan — called a pronominal adverb (voornaamwoordelijk bijwoord). And then, maddeningly, it often splits that word in two and scatters the halves across the clause. This page makes the system predictable.
The core rule: things don't take a pronoun after a preposition
Start with people, where Dutch behaves like English. Ik wacht op hem — "I'm waiting for him." The pronoun hem sits normally after the preposition op.
Now switch the object to a thing — say, the bus. You cannot keep the pattern and say Ik wacht op het (referring to the bus). That is simply not Dutch. Instead the thing-pronoun becomes er and moves in front of the preposition, fusing with it: Ik wacht erop.
Ik wacht op de bus. → Ik wacht erop.
I'm waiting for the bus. → I'm waiting for it. ('op het' is impossible → erop)
Ben je trots op je werk? — Ja, ik ben er heel trots op.
Are you proud of your work? — Yes, I'm very proud of it. (er … op, split)
So the rule is: preposition + a thing = a pronominal adverb, not preposition + pronoun. Preposition + a person keeps the ordinary pronoun. This person/thing split has no parallel in English and is the single thing to internalise.
The four front halves: er, hier, daar, waar
Which pronoun-adverb you pick depends on meaning, exactly parallel to the place adverbs:
| Front half | Corresponds to | Use |
|---|---|---|
| er- | "it" (unstressed) | neutral reference to a thing already known |
| hier- | "this" | something near / just mentioned, emphatic |
| daar- | "that / it" (stressed) | something farther / emphatic reference |
| waar- | "what / which" | questions and relative clauses |
Hier heb ik geen zin in.
I don't feel like this. (hier + in, split: 'hier … in')
Daar weet ik niets van.
I don't know anything about that. (daar + van, split: 'daar … van')
Waar denk je aan?
What are you thinking about? (waar + aan, split: 'waar … aan')
So erop, hierop, daarop, waarop are one family — same preposition op, four different front halves for "it / this / that / what."
Splitting: the two halves fly apart
Here is what makes pronominal adverbs feel slippery. The fused word frequently splits, with the er/hier/daar/waar part staying early in the clause and the preposition migrating to the end (or to just before the verb cluster). The plain joined form (erop, daarmee) is mostly used when nothing else intervenes; as soon as the clause has more material, they pull apart.
Ik heb er lang over nagedacht.
I thought about it for a long time. (erover → er … over)
Daar ben ik het helemaal mee eens.
I completely agree with that. (daarmee → daar … mee)
Waar heb je dat geld voor nodig?
What do you need that money for? (waarvoor → waar … voor)
Notice English does the same scattering with stranded prepositions ("What did you do that for?"), so the instinct isn't totally foreign — but Dutch does it far more systematically, and the waar-question is the everyday way to ask "for what / about what / with what."
The irregular fusions: met → mee, tot → toe
Two prepositions change shape when they go into a pronominal adverb. You must memorise these two — there is no logic to derive them from:
| Preposition | Becomes | Pronominal adverb |
|---|---|---|
| met (with) | mee | ermee, hiermee, daarmee, waarmee |
| tot (until/to) | toe | ertoe, daartoe, waartoe |
Waarmee kan ik je helpen? / Waar kan ik je mee helpen?
What can I help you with? (met → mee; both joined and split are fine)
Ik ben blij met je cadeau — ik ben er heel blij mee.
I'm happy with your present — I'm very happy with it. (met → mee, split as 'er … mee')
So "with it" is ermee, never ermet; "to that end" is daartoe, never daartot. These two are the only common shape-shifters, but they are extremely frequent, so they're worth drilling.
Questions and relative clauses need waar-forms
Two grammatical situations force the waar front half. First, questions about things: where English asks "What … for / about / with?", Dutch asks Waar … voor / over / mee?
Waar gaat dit boek eigenlijk over?
What is this book actually about? (waarover → waar … over)
Second, relative clauses referring to a thing with a preposition. English allows "the chair (that) I sat on"; Dutch uses waar … op: de stoel waar ik op zat.
Het bedrijf waar ik voor werk, zit in Amsterdam.
The company I work for is based in Amsterdam. (waarvoor → waar … voor)
In both cases, using a person-style pronoun (op wat, over wat) is wrong for a thing — wat may not take a preposition before it. It must be a waar-form.
When the object is a person: keep the pronoun
To complete the picture: if the object is a person, none of this applies. You use the ordinary preposition + personal pronoun, just like English, and you may not use erop / daarmee etc.
Ik wacht op hem, niet erop.
I'm waiting for him — a person, so 'op hem', not 'erop'.
Ik ben trots op haar.
I'm proud of her. (person → 'op haar', never 'er … op')
So the decision tree is short: person → preposition + pronoun; thing → pronominal adverb.
Common Mistakes
❌ Ik ben blij met dat.
Incorrect — 'with' + a thing can't be 'met dat'; it fuses to 'daarmee' (and met → mee).
✅ Daar ben ik blij mee. / Ik ben er blij mee.
I'm happy with that. / I'm happy with it. (split form is the natural one)
❌ Waarover denk je?
Not wrong, but unnatural for a question — Dutch normally splits it. Joined 'waarover' is fine in writing; speech prefers the split.
✅ Waar denk je over?
What are you thinking about?
❌ De stoel waarop ik op zat.
Incorrect — doubled preposition. Either joined 'waarop' OR split 'waar … op', not both.
✅ De stoel waar ik op zat.
The chair I sat on.
❌ Ik kijk uit op het — eh, op de vakantie.
Incorrect for a thing — 'op het' is impossible; use 'ernaar'/'erop' style: 'Ik kijk ernaar uit'.
✅ Ik kijk ernaar uit. / Ik kijk er erg naar uit.
I'm looking forward to it. / I'm really looking forward to it.
❌ Waar wacht je voor? — for the bus → Ik wacht voor de bus.
Wrong preposition AND wrong frame: 'wachten op', and 'for it' (thing) = erop, not 'voor het'.
✅ Waar wacht je op? — Ik wacht op de bus, ik wacht erop.
What are you waiting for? — I'm waiting for the bus, I'm waiting for it.
Key Takeaways
- When a preposition's object is a thing, Dutch forbids preposition + pronoun (op het, met dat) and uses a pronominal adverb instead: er/hier/daar/waar
- preposition.
- The four front halves map to it (er), this (hier), that (daar), what/which (waar).
- These words split in real sentences: the front half stays early, the preposition goes to the end (Daar weet ik niets van).
- Two irregular fusions to memorise: met → mee (daarmee), tot → toe (daartoe).
- Questions and relative clauses about things require a waar-form (Waar denk je aan?, het bedrijf waar ik voor werk); never op wat.
- When the object is a person, none of this applies — keep the ordinary pronoun (op hem, trots op haar).
Now practice Dutch
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Start learning Dutch→Related Topics
- Pronominal Er: Er + Preposition (ermee, erop, erover)B1 — A preposition cannot take a thing-pronoun in Dutch, so er replaces it and fuses with the preposition — 'with it' is ermee, not 'met het'; 'about it' is erover; 'on it' is erop — with the irregular fusions met→mee and tot→toe.
- Place and Direction Adverbs: Hier, Daar, Heen, VandaanA2 — Dutch splits place adverbs three ways that English collapses into one: location (hier/daar — here/there), direction toward (hierheen/daarheen — to here/to there), and direction from (hier vandaan / daar vandaan — from here/there). Covers ergens/nergens/overal, binnen/buiten, boven/beneden, links/rechts, weg, and the thuis vs naar huis distinction.
- Dutch Adverbs: OverviewA2 — The big picture for the Adverbs group: the main types (manner, time, place, degree, and sentence/modal adverbs); the headline fact that Dutch adverbs never inflect — no -e ending, unlike attributive adjectives; that the plain adjective IS the manner adverb (no -ly to add); and the time–manner–place ordering, which is the exact reverse of English's manner–place–time.
- Verb-Second (V2) in Main ClausesA1 — The backbone of Dutch main clauses — the finite verb sits in the second position, where 'position' means the second constituent, not the second word.
- Time-Manner-Place OrderB1 — Dutch orders adverbials Time–Manner–Place — when, then how, then where — the exact reverse of the English Place–Manner–Time habit, so English speakers must literally flip their instinct.