| Sg M | Pl M | Sg F | Pl F | Sg N | Pl N | |
| Nom | opena (rule) | openan (rule) | opene (rule) | openan (rule) | opene (rule) | openan (rule) |
| Acc | openan (rule) | openan (rule) | openan (rule) | openan (rule) | opene (rule) | openan (rule) |
| Gen | openan (rule) | openra (rule) | openan (rule) | openra (rule) | openan (rule) | openra (rule) |
| Dat | openan (rule) | opnum (rule) | openan (rule) | opnum (rule) | openan (rule) | opnum (rule) |
| SgM | PlM | SgF | PlF | SgN | PlN | |
| Nom | open | opne (rule) | openu (rule) | opna (rule) | open (rule) | opene (rule) |
| Acc | openne (rule) | opne (rule) | opene (rule) | opna (rule) | open (rule) | opene (rule) |
| Gen | opnes (rule) | openra (rule) | openre (rule) | openra (rule) | opnes (rule) | openra (rule) |
| Dat | opnum (rule) | opnum (rule) | openre (rule) | opnum (rule) | opnum (rule) | opnum (rule) |
| Instr | opne (rule) | opnum (rule) | openre (rule) | opnum (rule) | opne (rule) | opnum (rule) |