Summary
Yuri S. Avetisyan
Key words – Formative structures, Singular plural formation, Variation in structure, Preference Development, Lexical pronunciation, Exact pronunciation, Economy of energy in oral expression, Statistic.
In modern literary Armenian, the shifts in derivational bases with or without sound interchanges and the emergence of these forms are definitely connected with sound interchange regularities and are conditioned by them. Words of frequent usage have the variations of derivational bases. And, as supposed, it is mostly manifested in the word-building bases. Generally, variational manifestations do not have foreign words and terms, which, as we saw, undergo sound interchanges in form-building nor in word-building.