For someone (agent) to pay attention to someone or something (loc ref i-, CV- + -on); to notice someone or something (loc ref i-, CV- + -on).
Nan tatāguh penghana ya mid ihī'aldah tungnin ti adīda munlūbung.
The people of long ago didn't notice the cold, they didn't put on upper garments.
Durative aspect (CV-) co-occurs both with i- and -on.
Hihi'ālon Lu'mag an umuy munggābut at gun manelhelong an malubu.
Lu'mag continually pays attention in going to weed and so she always goes to work in the early morning.