For someone (agent; s agent maN-) to persist in doing something (theme i-, -on).
Iyanghad nan umuy muntāmuh payawna ta nangāmung un malpah.
The one going to work in her pond field persists (in doing so) until (her work) is finished.
Ang'anghādon nan tatāgun umuy mangumah nan tiyalgaw ti ma'ūgaw at ag'aga ya nalāngu ta way atondan mamūul.
The people persist in going to make upland fields during the dry season because it is dry weather and so (the cut vegetation) is quickly dried so they can burn it.