| Sg. Indef. | sandkassi |
| Sg. Def. | sandkassinn |
| Pl. Indef. | sandkassar |
| Pl. Def. | sandkassarnir |
| Sg. Indef. | sandkassa |
| Sg. Def. | sandkassans |
| Pl. Indef. | sandkassa |
| Pl. Def. | sandkassanna |
| Sg. Indef. | sandkassa |
| Sg. Def. | sandkassanum |
| Pl. Indef. | sandkössum |
| Pl. Def. | sandkössunum |
| Sg. Indef. | sandkassa |
| Sg. Def. | sandkassann |
| Pl. Indef. | sandkassa |
| Pl. Def. | sandkassana |