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