| Nominativ | congermanum, congermanum, congermanus, congermana, congermana, congermanus | congermanae, congermanae, congermani, congermani, congermana, congermana |
| Genitiv | congermanae, congermanae, congermani, congermani, congermani, congermani | congermanorum, congermanorum, congermanorum, congermanorum, congermanarum, congermanarum |
| Dativ | congermano, congermano, congermano, congermanae, congermanae, congermano | congermanis, congermanis |
| Akkusativ | congermanam, congermanam, congermanum, congermanum, congermanum, congermanum | congermana, congermanos, congermanos, congermanas, congermanas, congermana |
| Ablativ | congermano, congermano, congermano, congermano, congermana, congermana | congermanis, congermanis |
| Vokativ | congermanum, congermane, congermane, congermanum, congermana, congermana | congermanae, congermanae, congermani, congermani, congermana, congermana |
