CA can be considered a linguistic activity aimed at producing two-valued contrastive typologies. James (1980) argues that “performing a contrastive analysis involves two steps: description and comparison.” However, five different steps were mentioned for comparing two languages, or two subsystems. These are mentioned below: 1. Selection It can be based on the analyst's teaching experience and bilingual intuition, if the teacher shares the same native language with the students. In the selection process, the analyst should decide what to compare with what. Even the principles compared and contrasted should be similar in some respects. 2. Description The linguist or language teacher must explicitly describe the two languages ​​in question. Scientific description was the core of contrastive analysis. Some languages ​​require the use of alternative models for their description