| Singular | Plural | |
|---|---|---|
| Nominativ | corrugus, corrugus | corrugi, corrugi |
| Genitiv | corrugi, corrugi | corrugorum, corrugorum, corrugum, corrugum |
| Dativ | corrugo, corrugo | corrugis, corrugis |
| Akkusativ | corrugom, corrugom, corrugum, corrugum | corrugos, corrugos |
| Ablativ | corrugo, corrugo | corrugis, corrugis |
| Vokativ | corruge, corruge | corrugi, corrugi |