This study explores the acquisition of the determiner phrase (DP) in monolingual (L1) and bilingual (2L1) French. I investigate the acquisition of DP structures and features in the speech of two monolingual French and two bilingual French-English subjects from the CHILDES (Child Language Data Exchange System) corpus. I perform a thorough, longitudinal examination of the children's data, from the ages of 1;10 to 4;00, focusing on the description and analysis of their development of DP elements, words, and structures such as the definite and indefinite articles, demonstratives, and numerals, as well as the DP features of gender, number, and definiteness. I also consider the Adjective Phrase (AP) and its interaction with the DP.

This study complicates the traditional view of discrete, simplified stages of DP acquisition, arguing instead for an ongoing and complex process. Application of the Minimalist model of syntactic analysis provides essential insights into the underlying processes of child grammar, and suggests a number of previously unaddressed characteristics and patterns in French DP development.