| Singular | Plural | |
|---|---|---|
| Nominativ | constantinus | constantiniani, constantinianum, constantini |
| Genitiv | constantinianum, constantini, constantiniani | constantinorum |
| Dativ | constantino | constantinis |
| Akkusativ | constantinianum, constantinom, constantinum | constantinos |
| Ablativ | constantino | constantinis |
| Vokativ | constantine | constantiniani, constantinianum, constantini |