You have to practise the way we say 'r' in English. I assume you speak a language with a sheepy rrrr sound, so the first thing youmust do is accept that the letter is completely different and said in a a different way. We can make the sound with our top teeth on the lower lip. Get you teacher to show you where to place the teeth and practise it, then over time it will start to become more natural.
- For Teachers