| Singular | Plural | |
|---|---|---|
| Nominativ | perfugasque, perfugas, perfuga | perfugae |
| Genitiv | perfugae, perfugai | perfugum, perfugarum, perfugarumque |
| Dativ | perfugae, perfugai | perfugabus, perfugis, perfugisque |
| Akkusativ | perfugam | perfugas, perfugasque |
| Ablativ | perfuga, perfugad | perfugabus, perfugis, perfugisque |
| Vokativ | perfuga | perfugae |