BSL has its own syntax and grammatical rules and is not a signed version of English and, as such, written communication of any length is not conducive to understanding.
Mae gan BSL ei chystrawen a’i rheolau gramadegol ei hun ac nid yw’n fersiwn wedi’i arwyddo o’r Saesneg ac, o’r herwydd, mae hi’n gallu bod yn anodd deall cyfathrebu ysgrifenedig o unrhyw hyd.