| Sg. Indef. | fes |
| Sg. Def. | fesið |
| Pl. Indef. | fes |
| Pl. Def. | fesin |
| Sg. Indef. | fes; fess |
| Sg. Def. | fesins; fessins |
| Pl. Indef. | fesa |
| Pl. Def. | fesanna |
| Sg. Indef. | fes; fesi |
| Sg. Def. | fesinu |
| Pl. Indef. | fesum |
| Pl. Def. | fesunum |
| Sg. Indef. | fes |
| Sg. Def. | fesið |
| Pl. Indef. | fes |
| Pl. Def. | fesin |