Noun-class prefixes are obligatory in most Bantu languages. However, the Sotho languages (Sesotho, Setswana, Sepedi) permit a subset of prefixes to be realized as null at the intersection of "unmarked" phonological, syntactic, and discourse conditions. This raises the question of how and when the licensing of null prefixes is learned. Using…

A microgenetic approach to studying grammatical morpheme learning uses longitudinal data from two children learning English in different ways. Eight general attributes of morphological systems are proposed that will promote or inhibit the emergence of filler syllables during development. (Contains 86 references.) (Author/LB)

Examined the development of principles of control in the grammar of 15 preschool children over a 9-month period, focusing on pronominal reference. The results confirm a developmental sequence that is driven by lexical learning and changing structural analyses. (38 references) (MDM)