[MissMisa]

Are we talking about accents here or grammar? I thought this was about the differences in grammar, not the differences in pronunciation. If it's the accent, then there isn't a 'British' accent. They are different depending on where you go. There is a generic 'standard english' which seemingly has no accent, used by people like newsreaders so that everyone is capable of understanding.

The differences in grammar are different spellings like : Colour and Color, Theatre and Theater.