| Singular | Plural | |
|---|---|---|
| Nominativ | conclusiuncula | conclusiunculae |
| Genitiv | conclusiunculae, conclusiunculai | conclusiuncularum, conclusiunculum |
| Dativ | conclusiunculae, conclusiunculai | conclusiunculis, conclusiunculabus |
| Akkusativ | conclusiunculam | conclusiunculas |
| Ablativ | conclusiunculad, conclusiuncula | conclusiunculis, conclusiunculabus |
| Vokativ | conclusiuncula | conclusiunculae |