Someone (mang-) goes through a hole or opening (-en) stooping or crouching.
Ilo. úsok 'a tunnel, to pass through a tunnel or under something'
úsok
Mangōsok kas gālot tan makapaybidi kad bahay mo.
Pass through the rattan so you are able to return to your house.
Someone (mangi-) inserts, passes, pushes something (i-) through a hole or opening.
mangi- mangiyōsok, i- iyōsok
Mangiyōsok ako so bolabola do abot no rayem.
I insert the thread through the hole of the needle.
Iyōsok mo hobid do nanareng a kayo.
Pass the rope through (the hole of) the leaning tree.