The Contrastive Analysis Hypothesis (henceforth CAH) came to existence when structural linguistics and behavioural psychology were very influential in the sixties as regards language teaching/learning.On the other hand, language under behaviourism is viewed as a system of habits where learning proceeds by producing a response to a stimulus and receiving either positive or negative reinforcement."Structuralism assumes that there is finite structure of a given language that can be documented and compared with another language" (Yang, 1992, p. 134).Consequently, while learning an additional language, the first language habits will be in the process and