Questions & Answers about Ona przenosi książki na półkę.
Why is it książki and not książek?
Because it’s the direct object of an affirmative sentence, so it takes the accusative plural, which for feminine inanimate nouns looks the same as the nominative plural: książki. Książek is genitive plural; you’d use it after negation or certain quantities, e.g., Ona nie przenosi książek, dużo książek, pięć książek.
Why na półkę and not na półce?
Polish uses:
- na
- accusative for motion onto a surface/destination: na półkę (onto the shelf).
- na
- locative for location/state: na półce (on the shelf).
What case is półkę, and why the -ę?
Accusative singular of a feminine noun ending in -a. Pattern: półka → półkę. You get accusative here because na expresses motion toward a destination.
Do I need the pronoun Ona?
No. Polish is pro-drop; the verb ending shows person/number. Przenosi książki na półkę is fine if context is clear. Using Ona can add emphasis or contrast (She, as opposed to someone else).