like: Have you ever driven a bus? — No, never. → →
792
Have you ever driven a bus? — No, never. ☊ 
Cậu từng lái xe bus bao giờ chưa? - Chưa bao giờ. ☊ Have you ever driven a bus? — No, never. ☊ Cậu từng lái xe bus bao giờ chưa? - Chưa bao giờ. ☊