What kind of English do you speak? British or American?
British English is the form of English used in the United Kingdom, including all dialects. American English is the form of English used in the United States, also including all regional dialects.
Written forms of British and American English as found in newspapers and textbooks vary little in their essential features, with only occasional noticeable differences in comparable media. This kind of formal English, particularly written English, is often called "standard English." References: 1. Wikipedia, 2. englisch-hilfen, 3. Cambridge dictionary.