| Singular | Plural | |
|---|---|---|
| Nominativ | fors | fortes, fortesque |
| Genitiv | fortissimio, fortissumi, fortis, fortisque | fortium, fortum, fordium |
| Dativ | forti, forte, fortiusque, forteque, fortique, ibamforte, feforte, fortisimum | fortibus |
| Akkusativ | fortem, fortemque, fortim, bellofortem | fortissimio, fortissumi, fortis, fortes, fortesque, fortisque |
| Ablativ | forti, forte, fortiusque, forteque, fortique, ibamforte, feforte, fortisimum | fortibus |
| Vokativ | fors | fortes, fortesque |