| SG | PL | |
| NOM | GAŠANš (rule) | GAŠANeš (rule) |
| ACC | GAŠANn (rule) | ? (rule) |
| GEN | GAŠANaš (rule) | GAŠANš (rule) |
| DAT | GAŠANi (rule) | GAŠANaš (rule) |
| LOC | GAŠANi (rule) | GAŠANaš (rule) |
| ALL | GAŠANa (rule) | ? (rule) |
| ERG | GAŠANanza (rule) | GAŠANanteš (rule) |
| ABL | GAŠANz (rule) | |
| INS | GAŠANt (rule) |