| Sg | Pl | |
| Nom | atganga | atgöngur (rule) |
| Acc | atgöngu (rule) | atgöngur (rule) |
| Dat | atgöngu (rule) | atgöngum (rule) |
| Gen | atgöngu (rule) | atgangna (rule) |
| Sg | Pl | |
| Nom | atgangan (rule) | atgöngurnar (rule) |
| Acc | atgönguna (rule) | atgöngurnar (rule) |
| Dat | atgöngunni (rule) | atgöngunum (rule) |
| Gen | atgöngunnar (rule) | atgangnanna (rule) |