Standard languages of Mongolian are the following:
Standard Mongolian Mongolian as spoken in Mongolia which in praxi is based on the Khalkha dialect Standard Mongolian in China which is phonetically based on the Chakhar dialect and grammatically based on a mix of the grammar of various Inner Mongolian dialects with some written Mongolian influences
Standard Oirat Mongolian Kalmyk, a standard variety of Oirat Mongolian recognized in Kalmykia Oirat as still unofficially written in Clear script in Xinjiang which in praxi is based on the Torgut dialect
Standard Buryat Mongolian Buryat Mongolian based on the Khori dialect recognized in Buryatia