Studies have shown that many people tend to rely on linguistic structures in their mother tongue to produce responses when writing or speaking in a target language. This study attempts to detect...Show moreStudies have shown that many people tend to rely on linguistic structures in their mother tongue to produce responses when writing or speaking in a target language. This study attempts to detect interlingual errors —that is, the errors which are caused by mother tongue interference. Moreover, in this research an inventory was made after investigating the difficulties encountered by native speakers of Greek learning Turkish in the Department of Turkish and Modern Asian Studies at the University of Athens. Special attention is also given to studying the relation of these errors and difficulties given the fact that Greek and Turkish are structurally and typologically so different. These findings provide enough clues to conclude that the interference of the mother tongue is the major cause of errors at the early stages of language learning with only a few cases based on intralingual errors. Some recommendations have been made in the treatment of errors.Show less