| Nominative | kulas |
| Genitive | kulasu; kulasa |
| Dative | kulasowi |
| Accusative | kulas; kulasa |
| Instrumental | kulasem |
| Locative | kulasie |
| Vocative | kulasie |
| Nominative | kulasy |
| Genitive | kulasów |
| Dative | kulasom |
| Accusative | kulasy; kulasów |
| Instrumental | kulasami |
| Locative | kulasach |
| Vocative | kulasy |