| SG | PL | |
| NOM | _A-BUš (rule) | _A-BUeš (rule) |
| ACC | _A-BUn (rule) | ? (rule) |
| GEN | _A-BUaš (rule) | _A-BUš (rule) |
| DAT | _A-BUi (rule) | _A-BUaš (rule) |
| LOC | _A-BUi (rule) | _A-BUaš (rule) |
| ALL | _A-BUa (rule) | ? (rule) |
| ERG | _A-BUanza (rule) | _A-BUanteš (rule) |
| ABL | _A-BUz (rule) | |
| INS | _A-BUt (rule) |