| Nominativ | socrus, socrusque, socrus, socrusque | socrusque, socrus, socruus, socruus, socrusque, socrus |
| Genitiv | socrus, socri, socri, socrusque, socros, socros, socrus, socrusque | socruum, socruum, socrum, socrum |
| Dativ | socrui, socrui, socru, socru | socrubus, socrubus, socribus, socribus |
| Akkusativ | socrum, socrum | socrus, socrusque, socrus, socruus, socruus, socrusque |
| Ablativ | socru, socru | socrubus, socrubus, socribus, socribus |
| Vokativ | socrus, socrusque, socrus, socrusque | socrusque, socrus, socruus, socruus, socrusque, socrus |
