| Nominativ | ducentensumum, ducentensuma, ducentensumus | ducentensumae, ducentensumi, ducentensuma |
| Genitiv | ducentensumi, ducentensumi, ducentensumae | ducentensumarum, ducentensumorum, ducentensumorum |
| Dativ | ducentensumo, ducentensumo, ducentensumae | ducentensumis, ducentensumis, ducentensumis |
| Akkusativ | ducentensumam, ducentensumum, ducentensumum | ducentensumas, ducentensumos, ducentensuma |
| Ablativ | ducentensumo, ducentensumo, ducentensuma | ducentensumis, ducentensumis, ducentensumis |
| Vokativ | ducentensume, ducentensumum, ducentensuma | ducentensumae, ducentensumi, ducentensuma |
