| Sg | Pl | |
| Nom | kirkja | kirkjur (rule) |
| Acc | kirkju (rule) | kirkjur (rule) |
| Dat | kirkju (rule) | kirkjum (rule) |
| Gen | kirkju (rule) | kirkna (rule) |
| Sg | Pl | |
| Nom | kirkjan (rule) | kirkjurnar (rule) |
| Acc | kirkjuna (rule) | kirkjurnar (rule) |
| Dat | kirkjunni (rule) | kirkjunum (rule) |
| Gen | kirkjunnar (rule) | kirknanna (rule) |