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