Khalkha Mongolian has four past tense suffixes, -v, -san, -laa and -jee, and their semantic difference has been the subject of considerable disagreement in the literature. Robert Binnick discussed these suffixes in two earlier papers (1979, 1990). With The past tenses of the Mongolian verb (henceforth PTMV) he has now dedicated a full monograph to solving this problem.