| Case | Singular | Plural |
|---|---|---|
| nom | tupoun | tupouni |
| gen | tupouna | tupounů |
| dat | tupounovi, tupounu |
tupounům |
| acc | tupouna | tupouny |
| voc | tupoune | tupouni |
| loc | tupounovi, tupounu |
tupounech |
| instr | tupounem | tupouny |