Hello, and today I'm going to talk about the difference between formal and informal English. Now, it's very important to be able to distinguish between formal and informal English. Why? Well, if we are being too informal in circumstances which require more formality, well, we could get ourselves into trouble. And the other way around as well. If we are too formal with people who are expecting us to be much more informal, well, then we may sound a little bit pompous.