As well as asking for an ability to speak Welsh, adults and children and young people were asked about their ability to understand spoken Welsh, and their ability to read and write Welsh.
Yn ogystal â gofyn am y gallu i siarad Cymraeg, gofynnwyd i oedolion a phlant a phobl ifanc am eu gallu i ddeall Cymraeg llafar, a’u gallu i ddarllen ac ysgrifennu Cymraeg.