In Sarawak there are generally said to be three main linguistic groupings (Biatah language; Singai-Jagoi; Bukar and Sadong language) but these can be broken down even beyond the list referenced below as most people can be distinguished by locals down to village level through smaller differences in vocabulary and intonation.
Bidayuh Moden speak mixed languages , mixed languages between Padawan & Jagoi ( Semeba , Tematu , Bumbok and Sudad ) The dialects are not mutually intelligible and English or Malay are often used as common languages.