| Present | underthringandi |
| Past | underthrungan |
| 1st sing. | underthringo; underthringon |
| 2nd sing. | underthringis; underthringist |
| 3rd sing. | underthringit |
| 1st plur. | underthringon |
| 2nd plur. | underthringet |
| 3rd plur. | underthringont |
| 1st sing. | underthranc |
| 2nd sing. | underthrungi; underthrungis |
| 3rd sing. | underthranc |
| 1st plur. | underthrungun |
| 2nd plur. | underthrungut |
| 3rd plur. | underthrungun |
| 1st sing. | underthringe |
| 2nd sing. | underthringes; underthringest |
| 3rd sing. | underthringe |
| 1st plur. | underthringen |
| 2nd plur. | underthringet |
| 3rd plur. | underthringen |
| 1st sing. | underthrungi |
| 2nd sing. | underthrungi; underthrungis |
| 3rd sing. | underthrungi |
| 1st plur. | underthrungin |
| 2nd plur. | underthrungit |
| 3rd plur. | underthrungin |
| Singular | underthrinc |
| Plural | underthringet |