Importance. The characteristics of the concepts “linguistic errors” and “linguistic norm” (subjective and objective) in the process of teaching native and foreign languages are given, which determines the significance of work in the modern multicultural space. The definitions of “speech culture” and “usus” are considered, and a typology of speech errors is described, which is divided according to aspects of the language: phonetics, grammar and vocabulary (stylistics). Research Methods. Examples of speech errors by French speakers are presented and analyzed based on the analysis of statistical data conducted by the French publications Le Figaro, Le Conseil Rédaction, Toploc, which clearly demonstrate how the language norm manifests itself and works. Results and Discussion. The conditions for describing the comparative and comparative analysis of contacting languages are substantiated as an important condition for identifying language difficulties and errors in language structures for the further application of this knowledge in the methodology of teaching both the native language and French and other foreign languages. Conclusion. The knowledge gained will allow students to improve their sociolinguistic competencies in the future, and the results of the study can be used in revising existing programs for the French language and organizing training in a more detailed consideration of the methodological support for teaching French: creating teaching aids, developing video materials and control.