Theo Kgosinkwe’s Daughter Impresses Many With Her Setswana Speaking Abilities. Sky is not only attending a public school, she is also learning vernacular language. When many parents, prefer for their kids to gravitate more towards speaking English, the youngster is being taught to embrace Setswana. Her father Theo Kgosinkwe is Tswana, so it makes sense that the parents are making the language a priority. In a video that has warmed hearts, she is singing some pre-school and primary school songs in Setswana.