Аннотация:The problems in the field of variability of spoken English language actively developed in the Russian linguistics for about the last two decades need a logical understanding and interpretation of the reasons for their development. This paper presents the material of the Russian 21st century linguists’ research results in the field of pronunciation variability, which should be considered both with regard to intralinguistic and extralinguistic factors. At each stage of the development of the language and its national variants, the most stable innovations that are beyond the norm, but not inconsistent with the laws of language development, can become a common usage object and move into the category of normative and codified ones in the near future.