| Case | Singular | Plural |
|---|---|---|
| nom | debil | debilové |
| gen | debila | debilů |
| dat | debilovi, debilu |
debilům |
| acc | debila | debily |
| voc | debile | debilové |
| loc | debilovi, debilu |
debilech |
| instr | debilem | debily |