| Singular | Plural | |
|---|---|---|
| Nominativ | pina, pinna, pinnades | pinnae |
| Genitiv | pinnae, pinnai | pinnum, pinnarum |
| Dativ | pinnae, pinnai | pinnabus, pinnis, pinnisque |
| Akkusativ | pinnam | pinnas, pinnasque |
| Ablativ | pina, pinna, pinnad, pinnades | pinnisque, pinnabus, pinnis |
| Vokativ | pinnicule, pina, pinna, pinnades | pinnae |