| Singular | Plural | |
|---|---|---|
| Nominativ | conrugus, conrugus | conrugi, conrugi |
| Genitiv | conrugi, conrugi | conrugorum, conrugorum, conrugum, conrugum |
| Dativ | conrugo, conrugo | conrugis, conrugis |
| Akkusativ | conrugom, conrugom, conrugum, conrugum | conrugos, conrugos |
| Ablativ | conrugo, conrugo | conrugis, conrugis |
| Vokativ | conruge, conruge | conrugi, conrugi |