Deklinationen
| Singular | Plural | |
|---|---|---|
| Nominativ | singular sg concubium | plural pl concubia |
| Genitiv | singular sg concubiī | plural pl concubiōrum |
| Dativ | singular sg concubiō | plural pl concubiīs |
| Akkusativ | singular sg concubium | plural pl concubia |
| Ablativ | singular sg concubiō | plural pl concubiīs |
| Vokativ | singular sg concubium | plural pl concubia |