Most of the differences between the English of the UK and the English of North America are vocabulary differences and differences in pronunciation and spelling. However, there are some differences in the way grammar is used. There are fewer differences in writing than in speaking. Grammar is always changing, and many new ways of using grammar in BrE come from AmE, because of the influence of American popular culture, American media and the Internet.

You can find out more about these differences below:

Source GrammarCheck.com