1-khaHave you ever driven a bus? — Wakha wayiqhuba ibhasi?
2nanini nanokuba kunini naHave you ever been to Dwesa? — Wakha waya eDwesa nokuba kunini na?
The auxiliary verb '-kha' is usually used to express 'ever'. See the example in Sense 1. 'For ever' is often expressed by the auxiliary verb 'soloko'.