Someone (mag-) builds a bridge over a river (-an) using something (i-).
Magrangtay kamo so pamtangan ta.
Build a bridge for a place for our crossing over.
Rangtayan mo oksongaya, tan makangay ta do bīt.
Build a bridge over the river, so we can go to the other side.
Irangtay mo do oksong kayowaya binakir mo.
Build a bridge at the river with the tree that you cut down.