Different dialects, on the other hand, display differences in grammar and in lexis. Here are some examples. I ain't going. He don't know nothing. He doesn't know anything.
Most countries choose one dialect of their national language to be the standard form.
This form is the one normally used in education, the media, government and most written material, such as books and magazines. This course is written in standard British English. Non-standard dialects are not usually written, and even more rarely printed. Language is something we all feel we have the right to have views about - we all use it and we all experience it at the hands of others. Unfortunately, by the same token, it is a ripe field for prejudice and stereotypes.