| Nominative | siogun |
| Genitive | sioguna |
| Dative | siogunowi |
| Accusative | sioguna |
| Instrumental | siogunem |
| Locative | siogunie |
| Vocative | siogunie |
| Nominative | sioguni; siogunowie; sioguny |
| Genitive | siogunów |
| Dative | siogunom |
| Accusative | siogunów |
| Instrumental | siogunami |
| Locative | siogunach |
| Vocative | sioguni; siogunowie; sioguny |