On the study of syntaxical synonymy

In the collection "Problems of the textbook of Russian as a foreign language" PA Lekant expressed the opinion that achievements in the field of studying the syntactic synonymy of the Russian language are still "very modest" and that "systematic research work in this area is not being conducted" [1, with. 187], referring to the article by L. Yu. Maksimov [2]. Agreeing with the statement