The primary goal of the present study is an exposition of the structure of Mam, a Mayan language of the Mamean group. Mam is the most widely spoken of the four Mamean languages, and has been roughly estimated to have a quarter million speakers located in the departments of Huehuetenango and San Marcos in Guatemala and in the state of Chiapas in…

In speaking a child sometimes makes constructions in which a sequence of separate utterances expresses a semantic relation not expressed by either utterance. These "vertical constructions" are the main point of this study. Previous studies of construction in child language have largely dealt with sentences. In this study, sentences are…