Indefinite article 'ein' (a/an, neuter, accusative)

Neuter 'ein' does not change in the accusative. It is identical to the nominative form, so you simply keep ein.

Use ein for a neuter noun as the direct object when it is non-specific (a, any):

• Ich lese ein Buch. - I am reading a book.
• Ich kaufe ein Auto. - I am buying a car.
• Ich sehe ein Kind. - I see a child.

Compare the two cases - the article does not move:

• Nominative: Ein Buch liegt hier. - A book is lying here.
• Accusative: Ich lese ein Buch. - I am reading a book.

In the accusative, only the masculine indefinite article changes (ein → einen). Neuter and feminine stay the same.

Common mistakes:

• Adding -en by analogy with the masculine: Ich lese einen Buch is wrong; it must be ein Buch.
• Confusing genders: if a noun is das Buch (neuter), the indefinite article is ein, never einen.

'ein' (neuter) is the same in the accusative as in the nominative.

Neuter 'ein' is identical in nominative and accusative.

'ein' (neutrum) bleibt im Akkusativ gleich wie im Nominativ.