"Are you a farmer?"
Translation:Ffermwr dych chi?
dach chi is a very common dialect variation of dych chi used particularly in north-west Wales in writing as well as in speech. It also appears in the national media sometimes.
This course does not cover many dialect forms, but that one is so common that it has been included.
Oh that's good to know since it's the North West that I visit most an encouraged me to start learning
Does this mean that "chi" in this case is definitely formal, singular; otherwise "ffermwr" would be plural? Or is it one of those situations in Welsh were the singular is used even when there are multiple people / items involved, so here you can't distinguish between formal and informal plural? What would the profession noun be if the sentence was dyn ni? Sorry for the many questions