were registered to vote in the UK within the last 15 years (or if you were too young to have registered when you left the UK)
os oeddech wedi’ch cofrestru i bleidleisio yn y DU o fewn y 15 mlynedd diwethaf (neu os oeddech chi'n rhy ifanc i fod wedi cofrestru pan wnaethoch chi adael y DU)