In the multiple choice question "Sut fyddwch chi'n mynd?" and "Sut byddi di'n mynd?" were given as correct answers. Should the "b" have a soft mutation? If so, is it acceptable to leave out the mutation in some areas of Wales?
The mutation is incorrect after Sut...? (when it means how?), Pryd...?, Pam...? and Ble/Lle...?. The incorrect options have now been deleted.
(In casual speech some people incorrectly do mutate after them.)
Good question and good reply as that was a point of confusion for me.