| Sg. Indef. | krafa |
| Sg. Def. | krafan |
| Pl. Indef. | kröfur |
| Pl. Def. | kröfurnar |
| Sg. Indef. | kröfu |
| Sg. Def. | kröfunnar |
| Pl. Indef. | krafna; krafa |
| Pl. Def. | krafnanna; krafanna |
| Sg. Indef. | kröfu |
| Sg. Def. | kröfunni |
| Pl. Indef. | kröfum |
| Pl. Def. | kröfunum |
| Sg. Indef. | kröfu |
| Sg. Def. | kröfuna |
| Pl. Indef. | kröfur |
| Pl. Def. | kröfurnar |