do you know of any languages in north west england?
I'm assuming you mean indigenous languages?
Caveat, I'm not a linguist and there are very likely people out there with a lot more knowledge of this than me!
There was a language called Cumbric- if you've heard the "yan tan tethra" counting rhyme, that likely came from Cumbric. Cumbric is a Brythonic language, meaning it's closely related to Welsh, Cornish and Breton. Cumbric is believed to have been spoken between Lancashire and Cumberland- so North West England to the Lowlands of Scotland. Lots of place names in the area have Brythonic roots.
Unfortunately, we don't know a lot about Cumbric, and it's believed to have been lost in the 11th Century, although there are suggestions that it could have survived into the 12th Century and beyond as a community language.
As far as I'm aware, there aren't any confirmed written sources for Cumbric, there are some poems which may be written in Cumbric, or may be written in a dialect of Welsh. As far as I'm aware, there's no Cumbric revival, and we don't know enough of the language to resurrect it from (near) death as Cornish was.
I'm not an expert, but if you wanted to learn something close to Cumbric, I would guess the closest option would be Welsh, probably with the North Welsh dialect. However, other linguists who are more expert than me may want to weigh in!
I'll leave you with some lines of a poem which may be (old) Welsh, but may also (possibly) be Cumbric.
Pan elei dy dat ty e vynyd Dydygei ef penn ywrch penn gwythwch penn hyd Penn grugyar vreith o venyd Penn pysc o rayadyr derwennyd When your father went to [the] mountain He brought a head of buck, head of wild pig, head of stag Head of speckled grouse from [the] mountain Head of fish from [the] falls of Derwent
