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