The phonetic system includes 6 vowels and 24 consonants, so the number of vowel sounds is less than in many other Iranian tongues. The grammar retains inflectional and develops analytical structure, but in general the language comes to the analytical stage. Nominal parts of speech have lost their former system of word inflections. No case and gender can be observed in nouns, pronouns and adjectives. The case relations can be, however, expressed syntactically. The verb also has got many analytical forms and combinations. The tense relations are close to those between aspects. The moods of the verbs present: indicative, imperative, subjunctive, suppositive - the last did not exist in Proto-Indo-European, nor in Ancient Iranian languages. Another innovated form is the perfect which looks as one more mood - the so-called "non-evident".