The Proto-Tibeto-Burman verbal agreement system

Since the appearance of Stuart N. Wolfenden's monumental Outlines of Tibeto-Burman linguistic morphology in 1929, attention has increasingly focused not only on derivational processes in Tibeto-Burman, but also on the flexional morphology of conjugations and declensions. The first systematic comparison of Tibeto-Burman conjugational and pronominal morphology was James John Bauman's elaborate Pronouns and pronominal morphology in Tibeto-Burman in 1975. Bauman put to rest any lingering doubts that the conjugations of Tibeto-Burman languages could be attributed to an Austro- Asiatic substrate, and he adduced a vast body of data demonstrating the nativeness and antiquity of conjugational morphology in Tibeto-Burman. Verbal agreement in Tibeto-Burman has traditionally been known by Hodgson's term ‘pronominalization’, based on the assumption that conjugational affixes ultimately derive from ancient independent pronouns. Bauman demonstrated that the conjugational systems of Tibeto-Burman languages, and therefore any ancient pronominal system they may reflect, are more conservative than the independent pronominal systems attested in individual languages. Based on a comparison of these conjugations, Bauman (1975: 195, 237, 247) proposed the prototypical Tibeto-Burman agreement system shown in tables 1 and 2.