For two people or things (actor or agent muɴ- & theme) to simultaneously do something (theme -on).
dehhonon
Occurs as part of a verb chain, see sec.7.19.
Nundehhan da Lu'mag ay Oltāgon an ni'yālog.
Lu'mag and Oltāgon simultaneously became afflicted with the common cold.
Mundedehhan, dedehhonon: focus is on three or more who simultaneously do something.
Dedehhonon tu'un manāyaw ta maphod hi tigon.
Let us (incl) dance simultaneously so that it will be nice to see.
-on: dehhonon
For someone (agent) to time his action (theme i-) to be simultaneous with the action of someone else (loc ref).
Edehhan Benwag di pumbot'ānah nan pumbot'an Buhwi'.
Benwag will time his harvesting to be simultaneous with the harvesting of Buhwi'.