| Endings | -u | -a |
-u ending for inanimate nouns, although there are many exceptions that use the -a ending.| Masculine Singular Nominative Case | Masculine Singular Genitive Case | English |
|---|---|---|
| dom | domu | a house |
| las | lasu | a forest |
| telefon | telefonu | a phone |
| budynek | budynku | a building |
| cukier | cukru | sugar |
| samochód | samochodu | a car |
| krąg | kręgu | a ring |
-a ending for animate nouns. Many inanimate objects also take this ending.-u ending.| Masculine Singular Nominative Case | Masculine Singular Genitive Case | English |
|---|---|---|
| wół | wołu | an ox |
| bawół | bawołu | a buffalo |
| Masculine Singular Nominative Case | Masculine Singular Genitive Case | English |
|---|---|---|
| kot | kota | a cat |
| ogrodnik | ogrodnika | a gardener |
| pracownik | pracownika | a worker |
| słoń | słonia | an elephant |
| lew | lwa | a lion |
| pies | psa | a dog |
| bóbr | bobra | a beaver |
| mąż | męża | a husband |
| głośnik | głośnika | a loudspeaker |
| kij | kija | a stick |
| komputer | komputera | a computer |
