| Singular | Plural | |
|---|---|---|
| Nominativ | fornacula | fornaculae |
| Genitiv | fornaculae, fornaculai | fornacularum, fornaculum |
| Dativ | fornaculae, fornaculai | fornaculis, fornaculabus |
| Akkusativ | fornaculam | fornaculas |
| Ablativ | fornaculad, fornacula | fornaculis, fornaculabus |
| Vokativ | fornacula | fornaculae |