| Nominative | fishburger |
| Genitive | fishburgera |
| Dative | fishburgerowi |
| Accusative | fishburger; fishburgera |
| Instrumental | fishburgerem |
| Locative | fishburgerze |
| Vocative | fishburgerze |
| Nominative | fishburgery |
| Genitive | fishburgerów |
| Dative | fishburgerom |
| Accusative | fishburgery |
| Instrumental | fishburgerami |
| Locative | fishburgerach |
| Vocative | fishburgery |