For a liquid or soft medium (actor -um-) to emit bubbles as boiling water, cooking rice, water in a pond field from a footprint in mud as one removes his or her foot.
For a liquid or soft medium (actor) to bubble up something, (theme i-), as froth, a foreign substance floating on the liquid.
Tigom ta iluwagna nan ūhap ya inuhāpam ta malīnis nan bogah.
Watch so that (when) it bubbles up the cooking scum, you skim it so that the rice will be clean.