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)

The interlanguage hypothesis stresses that errors are a normal part of the language learning process. At the same time, in the view of many, the teacher has a responsibility to provide short cuts for the learner through appropriate corrective feedback. Conventionally, this has been taken to imply correction of expression by requiring repetition of…