The nominative is the case German uses for the subject of a sentence — the noun that performs the action or is being described. It is also the "home base" form: when you look a noun up in a dictionary, the article you see (der, die, das) is the nominative. Because of that, the nominative feels like the "neutral" case, and for the most part it behaves invisibly. But there is one place where it surprises English speakers, and getting it right is the difference between sounding fluent and sounding like a beginner: the noun that follows sein (to be), werden (to become), and bleiben (to stay) is also nominative.
The nominative marks the subject
The subject is whoever or whatever is doing the verb. In German, the subject always stands in the nominative, no matter where it sits in the sentence.
Der Hund bellt die ganze Nacht.
The dog is barking all night long.
Meine Schwester arbeitet bei einer Bank.
My sister works at a bank.
Das Kind spielt im Garten.
The child is playing in the garden.
Notice that the subject does not have to come first. German often pushes the subject after the verb — but it stays nominative regardless of its position:
Heute kommt mein Bruder zu Besuch.
My brother is coming to visit today.
Here mein Bruder sits in the middle of the sentence, but it is still the one doing the coming, so it is still nominative. The case is about the noun's job, not its location.
Nominative article forms
These are the forms you already know from the dictionary. They are the baseline against which every other case is measured.
| Masculine | Feminine | Neuter | Plural | |
|---|---|---|---|---|
| Definite (the) | der | die | das | die |
| Indefinite (a/an) | ein | eine | ein | — (keine) |
Ein Mann steht vor der Tür.
A man is standing in front of the door.
Eine Katze schläft auf dem Sofa.
A cat is sleeping on the sofa.
The surprising part: the predicate noun is nominative too
This is the rule that trips up almost every English speaker. After the verbs sein (to be), werden (to become), and bleiben (to stay), the noun that follows is nominative — the same case as the subject.
Er ist ein guter Lehrer.
He is a good teacher.
Sie wird Ärztin.
She is becoming / going to be a doctor.
Das bleibt ein Problem.
That remains a problem.
In "Er ist ein guter Lehrer," both er and ein guter Lehrer are nominative. They are not subject and object — they are two names for the same person. The verb sein does not act on anything; it puts an equals sign between the two halves of the sentence. Er = ein guter Lehrer. When both sides of the equation refer to the same entity, German keeps them in the same case, and that case is the nominative.
This handful of "equating" verbs is sometimes called the copula (Latin for "link"). The members you need to know are:
| Verb | Meaning | Example complement |
|---|---|---|
| sein | to be | Er ist ein Arzt. |
| werden | to become | Sie wird Lehrerin. |
| bleiben | to stay, remain | Du bleibst mein Freund. |
| heißen | to be called | Bei allen heißt er nur der Chef. |
Why English speakers get this wrong
In English, we feel that "he" and "him" behave differently after "to be" — schoolbooks say "It is I," but everyone actually says "It's me." English has quietly given up on keeping the predicate in the subject form. So an English speaker's instinct, transferred to German, is to treat the thing after a verb as an object and reach for the accusative. That instinct is exactly wrong here.
The clearest place to see the contrast is with masculine nouns, because masculine is the only gender whose article changes in the accusative (ein → einen). Compare:
Das ist ein Mann.
That is a man. (predicate noun → nominative ein)
Ich sehe einen Mann.
I see a man. (direct object → accusative einen)
In the first sentence, sein equates "das" and "ein Mann," so you use the nominative ein. In the second, the verb sehen genuinely acts on a separate thing — a man who is being seen — so that man is a direct object and takes the accusative einen. Same noun, different case, because the verb's relationship to it is different. This single contrast is the heart of the whole rule.
Mein Onkel wird ein berühmter Sänger.
My uncle is going to be a famous singer. (nominative after werden)
Trotz allem bleibt sie eine gute Freundin.
In spite of everything, she remains a good friend. (nominative after bleiben)
How to spot the nominative
Two reliable questions identify the nominative noun:
- Wer oder was? ("Who or what?") asked of the verb finds the subject. Wer bellt? → der Hund. That is your nominative subject.
- After sein / werden / bleiben / heißen, the following noun phrase is also nominative — it renames the subject rather than receiving an action.
If neither applies, the noun is probably in another case, and you should reach for the accusative, dative, or genitive instead.
Common mistakes
❌ Das ist einen guten Film.
Incorrect — after 'sein' the predicate noun is nominative, not accusative.
✅ Das ist ein guter Film.
That's a good movie.
❌ Er möchte einen Lehrer werden.
Incorrect — 'werden' equates rather than acting on an object; the complement is nominative (and a profession after werden usually drops the article).
✅ Er möchte Lehrer werden.
He wants to become a teacher.
❌ Den Hund bellt.
Incorrect — the dog is the one barking, so it is the subject and must be nominative 'der', not accusative 'den'.
✅ Der Hund bellt.
The dog is barking.
❌ Du bleibst meinen besten Freund.
Incorrect — 'bleiben' is a copula, so the complement stays nominative 'mein bester Freund'.
✅ Du bleibst mein bester Freund.
You'll always be my best friend.
❌ Heute kommt meinen Bruder.
Incorrect — moving the subject after the verb does not change its case; it is still nominative 'mein Bruder'.
✅ Heute kommt mein Bruder.
My brother is coming today.
Key takeaways
- The nominative marks the subject — the doer — wherever it sits in the sentence.
- The dictionary forms der/die/das and ein/eine are nominative.
- After sein, werden, bleiben, heißen, the following noun is also nominative, because these verbs equate rather than act: X ist Y keeps both sides in the same case.
- English speakers wrongly reach for the accusative here ("Das ist einen Mann"); the giveaway is masculine, where nominative ein must not become accusative einen after a copula. For the deeper logic of predicate nouns and how apposition copies a noun's case, see predicate nominative and apposition; for when a noun really is an object, see the accusative case.
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Start learning German→Related Topics
- The Accusative CaseA1 — The accusative marks the direct object — and because only masculine articles visibly change, masculine 'den/einen' is the system's single biggest stumbling block.
- Predicate Nominative and AppositionB1 — How copular verbs keep their complement in the nominative, and how apposition makes a second noun phrase copy the case of the noun it renames.
- Definite Article Declension Across All CasesA2 — The full 4x4 der/die/das table — the master template that also unlocks dieser, jeder, welcher, and the strong adjective endings.
- The Four Cases: An OverviewA1 — Nominative, accusative, dative, and genitive — what each case does, why German marks roles on the article instead of by word order, and why this makes word order freer.
- The Definite Article: der, die, dasA1 — Germany's three words for 'the' and why der/die/das carries gender and case information English doesn't track.