In Hakka,the characters group B (colloquial layer from ancient tone IIvo) changes together with group C (literary layer from ancient tone IIvs), which is the same as in Cantonese.

• 客方言全浊上B类字 (口语用字 )与次浊上C类字 (书面用字 )相偕而变 ,此与粤方言同 ;