🎓 Prepared by students from Boğaziçi University

What Are German Indefinite Articles?

German indefinite articles (unbestimmte Artikel) are used to refer to non-specific nouns — the equivalent of 'a' or 'an' in English. Like definite articles, indefinite articles change based on three factors: the grammatical gender of the noun (masculine, feminine, neuter), the case (nominative, accusative, dative, genitive), and number. However, indefinite articles only have singular forms; there is no indefinite plural.

Short answer

German indefinite articles are ein (masculine), eine (feminine), and ein (neuter) in the nominative singular. They change form based on gender, case, and number — ein Mann, eine Frau, ein Kind in nominative, but einen Mann, eine Frau, ein Kind in accusative.

Indefinite Articles (Singular Only)
Masculine
  • Nominative: ein
  • Accusative: einen
  • Dative: einem
  • Genitive: eines
Feminine & Neuter
  • Nominative: eine / ein
  • Accusative: eine / ein
  • Dative: einer / einem
  • Genitive: einer / eines
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Step-by-step worked examples

Complete: 'Ich sehe _____ Frau.' (a woman — accusative feminine)

'Frau' is feminine
Accusative feminine = eine (same as nominative)
Answer: 'Ich sehe eine Frau.'

Complete: 'Das gehört _____ Freund.' (a friend — dative masculine)

'Freund' is masculine
Dative masculine = einem
Answer: 'Das gehört einem Freund.'

Complete: 'Das ist das Auto _____ Mannes.' (of a man — genitive masculine)

'Mann' is masculine
Genitive masculine = eines
Answer: 'Das ist das Auto eines Mannes.'
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Flashcards

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Quick quiz

Q1.What is the nominative masculine indefinite article?

Correct answer: C. Nominative masculine = ein

Q2.Complete: 'Sie spricht mit _____ Student.' (a student — dative masculine)

Correct answer: C. Dative masculine indefinite = einem

Q3.What changes in accusative feminine indefinite?

Correct answer: B. Feminine nominative and accusative are both 'eine' — no change

Q4.Genitive feminine indefinite article is?

Correct answer: B. Genitive feminine = einer
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04

Common mistakes

Using indefinite articles for plural nounsCorrect: Indefinite articles only exist in singular — use no article for indefinite plural

Treating masculine and feminine indefinite articles the same in all casesCorrect: Masculine 'ein' changes more (einen, einem, eines); feminine 'eine' changes only in dative/genitive (einer)

Confusing masculine 'ein' with neuter 'ein' — thinking they are identical in all casesCorrect: They look the same in nominative/accusative, but differ in dative (einem/einem) and genitive (eines/eines) — actually same, but represent different genders

Forgetting the -en in accusative masculineCorrect: Accusative masculine must be 'einen,' not 'ein'

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FAQ

What are German indefinite articles?

Ein, eine, and ein are the German 'a' or 'an'. They change based on gender, case, and number but only exist in singular.

Do indefinite articles have plural forms?

No — indefinite plural does not exist. Use no article for indefinite plural nouns.

Which indefinite article form changes the most?

Masculine: nominative 'ein' becomes accusative 'einen', dative 'einem', genitive 'eines'.

Is 'eine' the same in nominative and accusative?

Yes, feminine nominative and accusative are both 'eine' — the form does not change.

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