Someone (mang-) hits someone or something (-en) with the back of a knife, etc.
Mangbangad si āmang so boday.
Father hit the snake with the back of the bolo.
Binangad naw yaken.
He hit me with the back of his bolo.
Someone uses the back of a knife, etc., (i-) to hit someone or something.
Ibangad naw dyaken bokotaya no bahayang.
He uses the back of the bolo to hit me.