| Singular | Plural | |
|---|---|---|
| Nominativ | contubernius | contubernii |
| Genitiv | contubernii | contuberniorum |
| Dativ | contubernio | contuberniis |
| Akkusativ | contubernium, contuberniom | contubernios |
| Ablativ | contubernio | contuberniis |
| Vokativ | contubernie | contubernii |
12 (15) Formen für „contubernius“