| Sg. Indef. | hestakraft |
| Sg. Def. | hestakraftin |
| Pl. Indef. | hestakreftir |
| Pl. Def. | hestakreftirnar |
| Sg. Indef. | hestakraftar |
| Sg. Def. | hestakraftarinnar |
| Pl. Indef. | hestakrefta |
| Pl. Def. | hestakreftanna |
| Sg. Indef. | hestakraft |
| Sg. Def. | hestakraftini |
| Pl. Indef. | hestakreftum |
| Pl. Def. | hestakreftunum |
| Sg. Indef. | hestakraft |
| Sg. Def. | hestakraftina |
| Pl. Indef. | hestakreftir |
| Pl. Def. | hestakreftirnar |