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