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