The temporal modifier of the structural basis of a sentence in the modern language is expressed by adverbs, stable phraseological units of adverbial character, and nouns included as dependent words in different types of phrases.

In order to have a complete picture of the development and formation of the Russian literary language, "each of the old monuments of the language must be analyzed separately in lexical, grammatical, and historical-literary terms." The present work aims to make some contribution to the solution of this task.