Kate/Catherine/Dutchess of cambridges' accent has changed beyond recognition in only a few years though, not over a period of 20 years or more ( which perhaps you could expect) Apparently ( well according to Mr Google) she didn't speak posh enough so her step mother in law organised for her to have some lessons .
now her accent is so false and so much plummier than her husband and granny in law. Hope they've got a good teacher ready for MM.
they'll have their work cut out .
I wonder how long it takes to become a British citizen ? A year, a month, a week, overnight ?