Categories of First Syntax: Be, Be+ing, and Nothingness

摘要: The goal of this paper is to explore how aspects knowledge (competence) and use (performance) may interact both determine the course language acquisition child's productions at any given point in acquisition. At onset child limited its competence performance. That is, does not yet know everything she will eventually about her language, nor able perfectly have either producing or understanding speech. developing has a performance system which must be accommodated production comprehension. We can assume further that different entail cognitive costs, such more greater need minimize costs.