in English is:

polymorphism

Mutations

Soft:(no mutation)
Nasal:(no mutation)
Aspirate:(no mutation)

Use

yr amryffurfedd hwn
fy amryffurfedd i
dy amryffurfedd di
ei amryffurfedd ef/o
ei hamryffurfedd hi
ein hamryffurfedd ni
eich amryffurfedd chi
eu hamryffurfedd nhw/hwy
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