Reviews the notions of system and variability as applied to interlanguages, especially with respect to variability in the syntax of second language learners. Summarizes the findings of Huebner with respect to referentiality and then examines some new data collected 20 months after the end of the initial study. (SED)

Presents the results of a one-year longitudinal analysis of the interlanguage of an adult acquiring English without formal instruction. Observations of the form-function relationships in the early interlanguage are included as well as the ways these relationships change over the 12 months of the study. (SL)

This paper reports on the development of the article system in an adult's interlanguage over a one-year period. It compares the results of a conventional order-of-acquisition analysis with a paradigm model based on Bickerton (1975). (Author/CFM)