| Sg | Pl | |
| 1st | ? (rule) | trénum (rule) |
| 2nd | ?r (rule) | trénið (rule) |
| 3rd | ?r (rule) | tréna (rule) |
| Sg | Pl | |
| 1st | ?a (rule) | ?um (rule) |
| 2nd | ?ir (rule) | ?uð (rule) |
| 3rd | ?i (rule) | ?u (rule) |
| Sg | Pl | |
| 1st | trénumk (rule) | trénumk (rule) |
| 2nd | ?sk (rule) | trénizk (rule) |
| 3rd | ?sk (rule) | trénask (rule) |
| Sg | Pl | |
| 1st | ?umk (rule) | ?umsk (rule) |
| 2nd | ?isk (rule) | ?uzk (rule) |
| 3rd | ?isk (rule) | ?usk (rule) |
| Sg | Pl | |
| 1 | tréna (rule) | trénim (rule) |
| 2 | trénir (rule) | trénið (rule) |
| 3 | tréni (rule) | tréni (rule) |
| Sg | Pl | |
| 1 | ?a (rule) | ?im (rule) |
| 2 | ?ir (rule) | ?ið (rule) |
| 3 | ?i (rule) | ?i (rule) |
| Form | |
| Participle | trénandi (rule) |
| Past participle | ?r (rule) |
| Middle infinitive | trénask (rule) |
| Sg | |
| 2nd | trén (rule) |