Welsh pronouns are followed by the following mutations:

	Mutation
fy	nasal	cerdd > fy ngherdd i
dy	soft	barn > dy farn di
ei (m)	soft	drama > ei ddrama e/o
ei (f)	aspirate	tro > ei thro hi
ein	-	barn > ein barn ni
eich	-	cerdd > eich cerdd chi
eu	-	drama > eu drama nhw

The full table of mutations can be found by clicking here.