For someone to arch his or her back, head, neck (theme i-) backward.
Munha'it di bonog'un nangilalāngad an manatāngad hidin bullang an mun'in'innāngah nan hāpang di āyiw.
My back hurts in continually bending (it) backward to look up at the monkey frolicking in the branches of a tree.
For someone or something (patient ma-) to be arched backward; for a stone wall (patient ma-) to be leaning outward from its normal slightly reclining position, thus threatening to come down.
Tigom han nabūtong ti nen nā'uy an malāngad at magah hi nun'am.
Watch the drunk person because you see he is about to be bent backward and so he will fall below.
For someone (actor -um-; s actor muɴ-) to bend someone or something (theme i-, -on) backward, as for a person to bend his own or someone else's head, neck or back backward; to unintentionally bend a stone wall (theme i-, -on) outward in constructing it, with the top portion inclined outward from the angle of the rest of the stone wall surface.
Nappūhi han pampeng nan nalā'ay ti lināngadna.
The way the old person builds a stone retaining wall is not good because he has bent it outward.