| Sg | Pl | |
| Nom | hvalr | hvalar (rule) |
| Acc | hval (rule) | hvala (rule) |
| Dat | hvali (rule) | hvölum (rule) |
| Gen | hvals (rule) | hvala (rule) |
| Sg | Pl | |
| Nom | hvalrinn (rule) | hvalarnir (rule) |
| Acc | hvalinn (rule) | hvalana (rule) |
| Dat | hvalnum (rule) | hvölunum (rule) |
| Gen | hvalsins (rule) | hvalanna (rule) |