Do the Celtic Languages Have Area Effects?

Celtic languages have a quite an array of pretty divergent behaviors that are worth looking at. In middle Welsh, the third person singular copula has five different forms. These include East, which is archaic and used in certain idioms,. We have you, which comes after a predicate and before the subject. And then the last one, um, a C is used. It's, it's an existential. It means there is effectively. That's really interesting.