Are you the kind of person that loves studying new grammar rules? Or do you dislike doing grammar exercises? Whether you love it or dislike it learning and practising grammar will help you improve your spoken and written English. Using grammar correctly is also very useful for passing exams! Here are some tips for learning grammar:
Don't worry about making mistakes. Every time someone corrects you, you learn something new. Do you know which mistakes you make most? Make a list(清单) of your mistakes and pay special attention to them.
Be patient. Maybe you can do the practice exercises, but when you're speaking you don't have time to think about the correct grammar. Don't worry, that's completely normal! If someone explains(解释) to you exactly how to swim, can you just get in the water and swim without practising? Of course not! It's just the same with grammar. The more you practise, the better you'll be.
Read and listen to English as much as possible. Think about grammar when you're reading and listening. Do you notice any differences between your language and English? Knowing what the differences are will help you get English grammar right.
Practise, practise, and practise! Try to use the new grammar you have learnt immediately. When you do the practice exercises, try writing a sentence of your own, and use that grammar next time you're speaking. This will help you remember new grammar very well.