You're describing a house. You say een groot huis, no -e on groot. Then you describe a car and you say een grote auto, with an -e. Same word, same position in the sentence, different ending. If that's confusing, you're not missing something obvious. It's one of the trickier parts of dutch adjective endings, and there's a real rule behind it. Once you see the pattern, you'll stop guessing.
There's one clear exception that causes almost all the trouble here. We're going to spend most of our time on that.
When to Add -e to Dutch Adjectives: the Core Rule
An adjective that sits directly in front of a noun is called an attributive adjective. In "the big car" or "a nice day," big and nice sit right in front of the noun they describe. That's the attributive position.
Attributive adjectives in Dutch almost always take an -e ending.
de grote auto
the big car
een mooie dag
a nice day
de kleine kinderen
the small children
That -e is the default. If you're not sure what to do with an adjective in front of a noun, adding -e is the right guess almost every time. The exception is narrow and specific, and we're about to walk through it.
Two articles decide a lot of this: de and het. Quick reminder, since the adjective rule builds directly on top of it. De is used for most nouns. Het is used for a smaller group of singular nouns. All plural nouns use de, no matter what the singular word was.
Worked examples: building up the pattern
Let's go through this step by step, starting simple.
De-words are easy: always -e. Whether the sentence has a definite article (de), an indefinite article (een), or no article at all, a de-word adjective takes -e.
de grote auto
the big car
een grote auto
a big car
Same ending both times. With de-words, you don't have to think about definite or indefinite at all. Just add -e.
Het-words with the definite article: also -e. This is the part people don't expect. You'd think het-words behave differently in general, but with the definite article het, the adjective still takes -e, exactly like a de-word would.
het grote huis
the big house
Huis is a het-word. But because we're using het (definite) here, groot still becomes grote. No exception yet.
Het-words that are singular and indefinite: no -e. Here's the one case where the adjective stays bare, with no ending at all. The trigger isn't the word een specifically. It's that the noun is a het-word, it's singular, and it's indefinite. In practice, indefinite usually shows up as een in front of the noun, or sometimes no article at all.
een groot huis
a big house
Compare that to het grote huis above. Same noun, same adjective, but the ending changes depending on whether the noun is definite or indefinite.
That same bare form also shows up with no article at all, since leaving the article off is itself a way of being indefinite:
Groot huis te koop.
Big house for sale.
That's the kind of phrase you'd see on a sign or in a classified ad, a singular het-word with nothing in front of it. No -e there either, for the same reason as een groot huis.
Plurals: always -e, no exceptions. Once a noun is plural, it always uses de, and the adjective always takes -e. This holds even for nouns that were het-words in the singular.
grote huizen
big houses
Huis was a het-word, but huizen is plural, so it's treated like any de-word plural. Full -e, every time.
Predicative adjectives: they never inflect. This is a separate rule from everything above. It applies whenever the adjective describes the subject rather than sitting in front of a noun. That's most commonly a form of zijn (is, zijn, was, waren), but the same never-inflects rule applies with other linking verbs too, like worden (to become), blijven (to stay), and lijken (to seem). This position is called predicative.
Het huis is groot.
The house is big.
No -e here, and it doesn't matter if the noun is a de-word, a het-word, singular, or plural. Predicative adjectives just don't change.
The exception, laid out as a grid
Since this is the part that causes the most confusion, here's the whole picture side by side.
| Situation | Example | Gets -e? |
|---|---|---|
| De-word, definite | de grote auto the big car | Yes |
| De-word, indefinite | een grote auto a big car | Yes |
| Het-word, definite | het grote huis the big house | Yes |
| Het-word, singular, indefinite | een groot huis a big house | No |
| Any noun, plural | grote huizen big houses | Yes |
| Predicative (after is/zijn, worden, blijven, lijken) | Het huis is groot. The house is big. | Never inflects |
Only one row in that table is the exception: a het-word that's singular and indefinite. Everything else defaults to -e.
Worth knowing: the exception belongs to het-words specifically because of how de and het interact with definiteness. With de-words, definite or indefinite makes no difference, the adjective takes -e either way. With het-words, it does make a difference. A singular het-word that's definite (het grote huis) takes -e. The same singular het-word when it's indefinite (een groot huis, or with no article at all) stays bare. So the real trigger is indefiniteness on a singular het-word, not the specific word een.
Where English speakers go wrong
The single most common mistake is adding -e to the exception case. Every other adjective an English speaker learns in Dutch tends to have that -e attached to it. So groot huis looks incomplete next to all those other examples. People add -e out of habit and end up writing een grote huis (incorrectly meaning "a big house"). That's wrong. It should be een groot huis, no ending.
The second common mistake is inflecting predicative adjectives. Something like Het huis is grote feels like it should match the noun, the way English speakers might expect agreement to work. But Dutch predicative adjectives never take -e. It's always Het huis is groot (The house is big), De auto is mooi (The car is nice), De kinderen zijn klein (The children are small). No exceptions there either.
A smaller trap: forgetting that het grote huis does get the -e. People sometimes overcorrect once they learn about the exception, and start leaving -e off every het-word adjective, even when the article is het and not een. Remember, the exception only applies when the het-word is both singular and indefinite. A definite het-word, marked by het, still takes -e.
Edge cases and what this article doesn't cover
A few adjectives don't inflect at all, ever, no matter what comes before them. Adjectives ending in -en, like gouden (golden) or houten (wooden), stay the same in every position: het houten huis (the wooden house), een houten huis (a wooden house), de houten tafel (the wooden table), all with no extra -e. That's a separate, smaller rule and not part of the exception pattern above.
Adding -e can also come with spelling changes to the adjective itself, depending on how the word is spelled. We're not covering those spelling mechanics here. This article is about when to add -e, not how the spelling shifts when you do. While this rule is still settling in, stick to straightforward adjectives like groot, mooi, klein, and goedkoop, ones where adding -e doesn't change the spelling at all.
Recap
- Adjectives directly in front of a noun (attributive) usually take -e. That's the default.
- De-words always take -e, whether the article is definite, indefinite, or missing.
- Het-words take -e when the article is definite (het grote huis).
- Het-words do NOT take -e when they're singular and indefinite: een groot huis, or no article at all. This is the one real exception, and the trigger is indefiniteness, not the word een itself.
- Plural nouns always take -e on the adjective, regardless of the noun's original gender.
- Predicative adjectives, the ones after is, zijn, or other linking verbs like worden and blijven, never inflect at all.
Go practice this
Try writing five sentences describing objects around you right now, using een plus a het-word each time. Something like a book, a window, a plate. Force yourself through the exception case on purpose until een groot huis stops feeling wrong.
Then take the same nouns and put them in the definite form instead: het grote boek (the big book), het grote raam (the big window). Say both versions out loud back to back. Hearing the -e appear and disappear next to the same noun helps it stick faster than reading the rule again.
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