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