The analysis of Turkish speech suggests that there are two different morphological
forms in this language — a -dık form and a -dığı form. At first glance it may seem that both of these forms are freely produced by native speakers at the time of the conversation, guided by known rules of grammar. However, studies based on diachronic and synchronic methods of linguistic analysis allow to conclude that in the synchrony of the Turkish language word forms with the -dık index used without an affix of belonging, are not productive. Such word forms are either already independent words, included in the dictionary, or archaic forms, which the communicant retrieves from his memory in a fixed form, not producing them at the time of utterance.