Bachelor of Arts, University Witwatersrand, 1970; Bachelor of Arts with Honours, University Witwatersrand, 1971; Master of Arts, University Witwatersrand, 1976; Doctor of Philosophy, Rhodes University, (South Africa),1982.
Junior lecturer, African languages University Witwatersrand, Johannesburg, 1971-1975, Assistant lecturer, 1975-1977; Senior lecturer African languages, University of South Africa, Pretoria, 1980-1983, Associate Professor, 1983-1985, Professor, since 1985; Descriptive, Typological, Evolutionary linguistic researcher. Author of books: Issues in Zulu Relativization, 1982, Aspects of Venda Grammar, 1986; A Linguistic Analysis of Venda, 1990, A Linguistic Analysis of Northern Sotho 1994, A Linguistic Analysis of Zulu, 1998, Learn to Speak Zulu 2003. Author of numerous articles in international journals. Presenter of papers at International Conferences.