| Nominative | grommen |
| Genitive | grommens |
| Dative | grommene |
| Present | grommende |
| 1st sing. | gromme |
| 2nd sing. | groms; grommes |
| 3rd sing. | gromt; grommet |
| 1st plur. | grommen |
| 2nd plur. | gromt; grommet |
| 3rd plur. | grommen |
| 1st sing. | gromme |
| 2nd sing. | groms; grommes |
| 3rd sing. | gromme |
| 1st plur. | grommen |
| 2nd plur. | gromt; grommet |
| 3rd plur. | grommen |
| Singular | grom; gromme |
| Plural | gromt; grommet |