Meine Nachbarin mäht den Rasen ebenfalls; wir treffen uns anschließend.

My neighbor (female) also mows the lawn; we meet afterwards.

Breakdown of Meine Nachbarin mäht den Rasen ebenfalls; wir treffen uns anschließend.

• wir: we
• mein: my
• den: the; (masculine, accusative)
• die Nachbarin: the neighbor

Questions & Answers about Meine Nachbarin mäht den Rasen ebenfalls; wir treffen uns anschließend.

Why is it meine Nachbarin and not mein Nachbarin?

Because Nachbarin is feminine. Possessive determiners agree with the noun’s gender, number, and case. In the nominative singular:

• masculine: mein Nachbar
• feminine: meine Nachbarin
• neuter: mein Kind
• plural: meine Nachbarn

What’s the masculine form of Nachbarin, and is there any declension gotcha?

The masculine is der Nachbar. It has N-declension in some cases:

• nominative: der Nachbar
• accusative: den Nachbarn
• dative: dem Nachbarn
• genitive: des Nachbarn The feminine Nachbarin declines regularly (no -n added in singular).

Why is it den Rasen and not der Rasen?

Den Rasen is accusative masculine singular. Rasen is the direct object of mäht, so it takes the accusative. Masculine nouns change their definite article from der (nominative) to den (accusative).

Could I say das Gras instead of der Rasen?