| Sg | Pl | |
| 1st | ? (rule) | hyggjum (rule) |
| 2nd | hyggr (rule) | hyggið (rule) |
| 3rd | ?r (rule) | hyggja (rule) |
| Sg | Pl | |
| 1st | ?a (rule) | ?um (rule) |
| 2nd | ?ir (rule) | ?uð (rule) |
| 3rd | ?i (rule) | ?u (rule) |
| Sg | Pl | |
| 1st | hyggjumk (rule) | hyggjumk (rule) |
| 2nd | hyggsk (rule) | hyggizk (rule) |
| 3rd | ?sk (rule) | hyggjask (rule) |
| Sg | Pl | |
| 1st | ?umk (rule) | ?umsk (rule) |
| 2nd | ?isk (rule) | ?uzk (rule) |
| 3rd | ?isk (rule) | ?usk (rule) |
| Sg | Pl | |
| 1 | hyggja (rule) | hyggim (rule) |
| 2 | hyggir (rule) | hyggið (rule) |
| 3 | hyggi (rule) | hyggi (rule) |
| Sg | Pl | |
| 1 | ?a (rule) | ?im (rule) |
| 2 | ?ir (rule) | ?ið (rule) |
| 3 | ?i (rule) | ?i (rule) |
| Form | |
| Participle | hyggjandi (rule) |
| Past participle | ?r (rule) |
| Middle infinitive | hyggjask (rule) |
| Sg | |
| 2nd | hyggj (rule) |