| Singular | Plural | |
|---|---|---|
| Nominativ | cavernula | cavernulae |
| Genitiv | cavernulae, cavernulai | cavernulum, cavernularum |
| Dativ | cavernulae, cavernulai | cavernulis, cavernulabus |
| Akkusativ | cavernulam | cavernulas |
| Ablativ | cavernula, cavernulad | cavernulis, cavernulabus |
| Vokativ | cavernula | cavernulae |