Developmental sequence in the acquisition of interrogatives in the interlanguage of adult lerners of English as a foreign language

In this paper interlanguage development of two adult learners is observed during a one year period.
The theoretical section of the paper provides a description of the concept of interlanguage while simultaneously showing the development of the interlanguage hypothesis. The second chapter deals with the description of the Processability Theory which was used for the corpus analysis and the third c…