| masculin | feminin | neuter | plural | |
|---|---|---|---|---|
| Nominative | бойничный | бойничная | бойничное | бойничные |
| Genitive | бойничного | бойничной | бойничного | бойничных |
| Dative | бойничному | бойничной | бойничному | бойничным |
| Accusative inanimate | бойничный | бойничную | бойничное | бойничные |
| Accusative animate | бойничного | бойничную | бойничное | бойничных |
| Instrumental | бойничным | бойничной / бойничною | бойничным | бойничными |
| Prepositional | бойничном | бойничной | бойничном | бойничных |
| Short form | бойничен | бойнична | бойнично | бойничны |