| Singular | Plural | |
|---|---|---|
| Nominativ | demosthenes, demosthenen | demosthenis, demosthenes, demosthenen |
| Genitiv | demosthenis | demosthenium, demosthenum |
| Dativ | demosthene, demostheni | demosthenibus |
| Akkusativ | demosthenem | demosthenis, demostheneis, demosthenes, demosthenen |
| Ablativ | demosthene, demosthenen, demostheni | demosthenibus |
| Vokativ | demosthenes | demosthenen, demosthenes |