Within britain and within america, there are many different types of pronunciation. Some one from the east end of london might speak differently to some one from the west end oflondon. There's a similar kind of standard american accent as well which isn't specific to any region in America. So those are the two types of accent i'm going to focus on here. Er, if you're an amer an, then i'd like to apologize if my American accent isn't very good. I'm not an actor, really.