| Singular | Plural | |
|---|---|---|
| Nominativ | constitutionarius | constitutionarii |
| Genitiv | constitutionarii | constitutionarium, constitutionariorum |
| Dativ | constitutionario | constitutionariis |
| Akkusativ | constitutionarium, constitutionariom | constitutionarios |
| Ablativ | constitutionario | constitutionariis |
| Vokativ | constitutionarie | constitutionarii |