Questions & Answers about Ich schneide heute eine Zwiebel in der Küche.
• eine Zwiebel is the direct object of schneiden, so it takes the accusative case.
• Feminine indefinite articles are eine in both nominative and accusative, so there’s no change.
• (Masculine ein would become einen in the accusative, but feminine stays eine.)
• Here in expresses location (where you’re cutting), and location uses the dative case.
• Feminine die Küche becomes der Küche in dative.
• If you wanted motion into the kitchen, you’d use the accusative: in die Küche (movement).
German often follows the pattern Time – Object – Place. In our sentence you see:
- heute (time)
- eine Zwiebel (direct object)
- in der Küche (place)