| Singular | Plural | |
|---|---|---|
| Nominativ | catachana | catachanae |
| Genitiv | catachanae, catachanai | catachanarum, catachanum |
| Dativ | catachanae, catachanai | catachanis, catachanabus |
| Akkusativ | catachanam | catachanas |
| Ablativ | catachanad, catachana | catachanis, catachanabus |
| Vokativ | catachana | catachanae |