1) Aho ishyirwa hashobora guhindurwa bitewe n'ingano y'ingurube, ubushobozi bwo kuyikuramo, uburyo bworoshye kandi bworoshye kuyihindura.2) Kurinda neza amasohoro kugaruka, kunoza imikorere y'ubwonko.3) Igishushanyo cy'iminwa itatu gishobora gushyirwa mu icupa n'isakoshi, gikoreshwe mu buryo bworoshye kandi buhamye.2. Ibiranga imikorere1) Ahantu hatatu ho gushyira imyobo hashobora guhindurwahakurikijwe ingano y'umubiri wa tosows2) Ishyirwaho rirahamye kandi ntibyoroshye kugwa3) Gufata ifumbire y'imbogo inyuma bifasha gufumbirakandi ikarinda gusubira inyuma kw'amazi