umurongo ugaragara urashobora kugabanywamo ubwoko butatu: umurongo wumurongo uyobora, umurongo wa silindrike uyobora umurongo hamwe nu murongo wumupira uyobora, bikoreshwa mugushigikira no kuyobora ibice byimuka no gukora umurongo ugaruka ukurikije icyerekezo cyatanzwe.Ukurikije imiterere yo guterana, umurongo uyobora umurongo urashobora kugabanywamo ibice byo kunyerera, kuyobora ibizunguruka, kuyobora ibiyobora byoroshye, kuyobora ibiyobora amazi n'ibindi.