Re-Conjugation of Single Paradigms of Middle Period in the Modern Period (A Historical Evolution in Persian Language)

There is a process in Persian language in which Middle period's single paradigm are not recognized as a paradigm, but are accepted as a simple element, and not derived, in the verbal system and are re-conjugated. The reason is that with the loss of some verbal features in Persian such as verb determinates, several paradigms constructed by using those features, and still existing in language, have turned into simple and fixed words; the features constructing those paradigms are also unknown. On the other hand, affected by the analogy rule, irregular paradigms gradually move toward regulation. This historical process can be observed at two levels: 1. Lexical- Morphological level, 2. Morphological level. In Lexical-Morphological level two third person singular single paradigms, and the imperative verb of "to be" (būdan) have been considered as stems and re-conjugated in the new period: 1. hast, 2. bāš. In Morphological level, two verbal constructions, in general, and not from a specific infinitive, have been re-conjugated: 1. third person singular of the implicit verb; 2. optative verb.