This grammatical essay is the result of the Dagestan linguistic expedition of 1933, organized by the All-Union Central Committee of the new alphabet together with the Institute of Language and Thinking of the USSR Academy of Sciences under the leadership of Academician N.L. Marra. The material collected in 1933 was checked and replenished in a certain part in 1934, which made it possible to cover a number of unexplored dialects of the Agul language. This essay covers three unexplored dialects of the Agulian language.