If you learn just one rule about Dutch negation, learn this one. English has a single "not," so an English speaker doesn't expect to choose a negator — but Dutch forces the choice on every negated sentence. The good news: the rule is genuinely simple and almost exception-free. Use geen to negate an indefinite noun; use niet for absolutely everything else. This page turns that into a reflex.
The one test that decides it
Ask yourself a single question about what you're negating:
Am I negating an indefinite noun? — that is, a noun introduced by een, or a bare plural or mass noun with no article?
- Yes → use geen.
- No (you're negating a verb, an adjective, an adverb, a definite noun, a preposition phrase, a name...) → use niet.
That's the whole rule. Everything below is just showing you how to recognise "an indefinite noun" quickly and confidently.
Geen: negating indefinite nouns
Geen steps in for een, and for the "zero article" in front of bare plurals and mass (uncountable) nouns. Watch how the positive sentence turns negative:
Ik heb een auto. → Ik heb geen auto.
I have a car. → I don't have a car.
Ze drinkt koffie. → Ze drinkt geen koffie.
She drinks coffee. → She doesn't drink coffee. (bare mass noun → geen)
Er liggen appels in de schaal. → Er liggen geen appels in de schaal.
There are apples in the bowl. → There are no apples in the bowl. (bare plural → geen)
The literal feel of geen is "not a / not any / no" — it bundles the negation and the article into one word. That's why geen sits where the article would be, right before the noun (and any adjective): geen grote auto (no big car), geen lekkere koffie (no nice coffee).
We hebben geen warm water meer.
We've got no hot water left.
Niet: negating everything else
If the thing you're negating is not a bare indefinite noun, you use niet. That covers a lot of ground:
Verbs / whole actions — niet typically goes to the end of the clause:
Ik werk vandaag niet.
I'm not working today.
Adjectives — niet goes right before the adjective:
De koffie is niet lekker.
The coffee isn't nice.
Adverbs and prepositional phrases — niet goes right before them:
Hij rijdt niet snel.
He doesn't drive fast.
We gaan niet naar de bioscoop.
We're not going to the cinema.
Definite nouns — this is the crucial one for the niet/geen contrast. A noun is definite when it carries de, het, deze, die, dit, dat, mijn, jouw... or is a proper name. Definite nouns are negated with niet, never geen:
Ik ken die man niet.
I don't know that man. (definite 'die man' → niet)
Ik heb mijn sleutels niet bij me.
I haven't got my keys on me. (possessive → definite → niet)
Ik ken Amsterdam niet zo goed.
I don't know Amsterdam very well. (proper name → niet)
The decisive contrast: same noun, different negator
The clearest way to feel the rule is to negate the same noun two ways — once indefinite, once definite:
| Indefinite → geen | Definite → niet |
|---|---|
| Ik heb geen auto. (I don't have a car.) | Ik wil de auto niet. (I don't want the car.) |
| Ze drinkt geen koffie. (She doesn't drink coffee.) | Ze wil deze koffie niet. (She doesn't want this coffee.) |
Ik heb geen auto, dus ik wil die nieuwe auto van jou niet lenen — ik kan niet rijden.
I don't have a car, so I don't want to borrow that new car of yours — I can't drive. (geen auto = indefinite; die auto = definite → niet)
A note on 'niet een' for emphasis
There is one narrow case where niet een appears: heavily stressed, contrastive "not a single one." Even then, native speakers usually say geen enkele instead. At A1, treat niet een as wrong and always use geen for plain negation of an indefinite noun.
Er was geen enkele plek vrij in de trein.
There wasn't a single free seat on the train. (emphatic 'not one' = geen enkele, not 'niet een')
Common Mistakes
❌ Ik heb niet een auto.
Incorrect — to negate an indefinite noun, use 'geen', which already replaces 'een'.
✅ Ik heb geen auto.
I don't have a car.
❌ Ik heb niet tijd.
Incorrect — 'tijd' is a bare mass noun, so it's negated with 'geen'.
✅ Ik heb geen tijd.
I don't have time.
❌ Ik ken geen die man.
Incorrect — 'die man' is a definite noun, so it takes 'niet', not 'geen'.
✅ Ik ken die man niet.
I don't know that man.
❌ Ik wil geen de soep.
Incorrect — 'geen' cannot combine with a definite article; a definite noun is negated with 'niet'.
✅ Ik wil de soep niet.
I don't want the soup.
❌ De koffie is geen lekker.
Incorrect — 'lekker' is an adjective, not an indefinite noun, so it's negated with 'niet'.
✅ De koffie is niet lekker.
The coffee isn't nice.
Key Takeaways
- One test decides it: negating an indefinite noun (een / bare plural / mass) → geen; everything else → niet.
- Geen replaces the article — never niet een, never geen de.
- Definite nouns (de/het/deze/die/mijn/names) are negated with niet, not geen.
- Niet goes to the end for whole-action negation, and right before the adjective, adverb or PP it targets.
- For emphatic "not a single one," use geen enkele, not niet een.
Now practice Dutch
Reading grammar gets you part of the way. The exercises are where it sticks — free, no signup needed.
Start learning Dutch→Related Topics
- Dutch Negation: OverviewA1 — The big picture for negating in Dutch — the two negators niet and geen, when each is used, where niet goes in the sentence, and the family of negative words like nooit, niets and niemand.
- Choosing: Niet or Geen?A1 — A one-question decision guide for Dutch negation — if you're negating an indefinite noun, it's geen; for everything else it's niet — with a flowchart, head-to-head contrasts, and the errors English speakers make.
- Mistake: Niet vs GeenA2 — English speakers reach for 'niet een' where Dutch demands 'geen', and they wrongly attach 'geen' to definite nouns. The rule is mechanical: an indefinite noun is negated with 'geen', and everything else with 'niet'. This page drills the choice with incorrect→correct pairs for every case.
- Where to Put NietB1 — The sentence negator niet travels as far right as it can — after definite objects, time phrases, and pronouns, but stopping just before the closing verb and before predicate, place, and prepositional complements.
- Negative Words: Niets, Niemand, Nergens, NooitA2 — The Dutch words that carry their own built-in 'not' — niets/niks, niemand, nergens and nooit — and the one-negator-per-clause rule that means you never add niet on top of them.