Unyango langaphambi kokutyabeka ngummeli oqhelekileyo wezicelo zemilomo. Imilomo yangaphambi kokutyabeka esiyilelayo kunye nokuyila inentsebenzo egqwesileyo kwaye inokususa ngokulula amabala eoyile, umhlwa okanye imichiza kumphezulu wento leyo. Ukutshiza ngaphambi kokutyabeka kugubungela inyathelo elibalulekileyo kwinkqubo, kubaluleke ngokukhethekileyo ukukhetha umlomo ngomgangatho ozinzileyo.

Imilomo yethu ineempawu zokutshiza ngokufanayo, ifuthe elinamandla, kunye nokonga amanzi, kwaye unoluhlu olubanzi lwezicelo kwishishini lokutyabeka jikelele. Ukukhetha esemgangathweni pre-ukutyabeka ngemilomo esemgangathweni kunokukwenza wenze okungakumbi ngokuncinci.