Russian has preserved an Indo-European synthetic-inflectional structure, although considerable leveling has taken place.
Russian grammar encompasses
a highly synthetic morphology
a syntax that, for the literary language, is the conscious fusion of three elements:
a polished vernacular foundation;
a Church Slavonic inheritance;
a Western European style.
The spoken language has been influenced by the literary one, but continues to preserve characteristic forms. The dialects show various non-standard grammatical features, some of which are archaisms or descendants of old forms since discarded by the literary language.