Breakdown of Klawiatura mojego komputera jest głośna, ale mysz jest bardzo cicha.
Questions & Answers about Klawiatura mojego komputera jest głośna, ale mysz jest bardzo cicha.
Because mojego komputera is in the genitive case, which is used to show possession.
- The structure is literally: Klawiatura (czyja?) mojego komputera = Keyboard (whose?) of my computer.
- In Polish, when one noun belongs to another, the “owner” is put into the genitive:
- klawiatura telefonu – the keyboard of the phone
- klawiatura mojego komputera – the keyboard of my computer
The possessive pronoun mój (my) has to agree in case and gender with komputer, so it becomes:
- Nominative: mój komputer – my computer (as subject)
- Genitive: mojego komputera – of my computer
Here, because we need “of my computer”, we use genitive, so it must be mojego komputera, not mój komputer.