| Nominativ | gratulabundum, gratulabundum, gratulabunda, gratulabundus, gratulabundus, gratulabunda | gratulabundae, gratulabundae, gratulabundi, gratulabundi, gratulabunda, gratulabunda |
| Genitiv | gratulabundae, gratulabundi, gratulabundi, gratulabundi, gratulabundi, gratulabundae | gratulabundorum, gratulabundorum, gratulabundorum, gratulabundarum, gratulabundorum, gratulabundarum |
| Dativ | gratulabundo, gratulabundae, gratulabundo, gratulabundo, gratulabundo, gratulabundae | gratulabundis, gratulabundis |
| Akkusativ | gratulabundam, gratulabundam, gratulabundum, gratulabundum, gratulabundum, gratulabundum | gratulabundos, gratulabundas, gratulabundas, gratulabunda, gratulabunda, gratulabundos |
| Ablativ | gratulabundo, gratulabundo, gratulabundo, gratulabunda, gratulabunda, gratulabundo | gratulabundis, gratulabundis |
| Vokativ | gratulabunde, gratulabundum, gratulabundum, gratulabunde, gratulabunda, gratulabunda | gratulabundae, gratulabundae, gratulabundi, gratulabundi, gratulabunda, gratulabunda |
