| Singular | Plural | |
|---|---|---|
| Nominativ | responsom, responsum, responsumque | responsa, responsaque |
| Genitiv | responsi | responsorum |
| Dativ | responso | responsis |
| Akkusativ | responsumque, responsum | responsaque, responsa |
| Ablativ | responso | responsis |
| Vokativ | responsum, responsumque | responsaque, responsa |