1.Uburiri bwuzuye-Amashanyarazi: Umutwe, ikirenge, nuburebure bwuburiri bushobora guhindurwa ukoresheje ikiganza hamwe na moteri yinyongera yo kuzamura / kugabanya uburebure bwigitanda.
2.Uburiri bwa Semi-Amashanyarazi: Umutwe nibirenge birashobora guhindurwa no kugenzura intoki, uburiri burashobora kuzamurwa / kumanurwa ukoresheje intoki (ibi mubisanzwe bishyirwa muburebure bwiza kumurwayi hanyuma bigasigara kuri uwo mwanya).