 Cyrillic uses large numbers of digraphs only when used to write non-Slavic languages; in some languages such as Avar, these are completely regular in formation.Many Caucasian languages use (Abkhaz), (Kabardian), or (Avar) for labialization, for instance Abkhaz for (sometimes ), just as many of them, like Russian, use for palatalization.Since such sequences are decomposable, regular forms will not be listed below.