What mistakes you need to avoid for better English?

You can learn English without any mistakes, How? You should fill your brain with correct sentences and imitate them.

To avoid mistakes you can follow some books dictionary,or you can listen native speaker’s language.If you practice seriously then it is very hard to make a mistake! First, try to be more careful by using the rules of error free speaking. If you still make a lot of mistakes , more than 1 mistake every 3 sentences, try to practice by reading and listening in English. You avoid mistakes if you follow a couple of rules:

Try to use very simple language
Some beginners try to build very complicated sentences with things like the present perfect tense or conditionals. They make horrible mistakes. Don't do this!First use some simple sententences and they try complecated. If you've just started to speak or write in English it would be very difficult to use complecated sentences.More chances are there to make mistakes.You may feel you're talking like a child or that you are not expressing your thoughts, but don't worry about it. Right now, your task is not to express your thoughts freely; your task is to learn the language.

Be slow and careful
In the beginning, you should write very slowly. If you need 2 hours to write an e-mail message with 10 correct sentences, that's okay. That's how long it should take if you're just starting to write. Why should it take so long? Because you should read your sentences many times, looking for mistakes. You should correct your own sentences frequently. You should check if your sentences are correct by using a dictionary and the Web. And you should look for example sentences to imitate. If you are more care ful you can avoid mistakes.

If you're not sure how to say something, don't say it
Some times when you speak, you can't say something correctly, it's almost better not to say it.Otherwise you will make some mistakes. You don't want to teach yourself the wrong way to say it. Instead of that you can try to look for the correct sentence in a dictionary or on the Web. But when speaking, usually you don't have time for that. So it's a good idea to say something else — something that you know is correct. It can even be something on a different subject.

When writing, always look things up
Whenever you're not sure how to use a word, look it up in a good dictionary to find example sentences with it. When you've written something, and you are not sure if it's correct, search for it on the Web . If many pages contain your phrase, then it is probably correct. Dictionaries and web should be your everyday tools, and you should use them even many times in one sentence.If you do so you will get the idea how to use dictionary and web.

Know where you can screw up
Sometimes learners can not realize how different English is from their native language. When speaking, they translate word for word from their native language, and they think their sentences are okay. When reading or listening in English, pay close attention to things like word order, articles, prepositions, and tenses. Compare sentences in English with equivalent sentences in your native language. Notice the differences in words and in word order. This will make you more careful when speaking in the foreign language, because you will realize which parts of your sentences can be wrong and should be double-checked.

Don't worry about fluency
Fluency is easy to achieve by simply talking. If you practice speaking, you will be able to speak faster and faster Through practice you can achieve fluency.You should be very slow and correct ,while you speak,you can easily improve your fluency.But if you are fluent and make a lot of mistakes, it is not so easy to remove your mistakes and become fluent and correct. So you should speak slowly without making any mistakes and gadually you can attain fluency.

Don't speak or write too early
First write, then speak.
Writing is easier than speaking because:
1) you don't need to have good pronunciation,but you need good spelling
2) you can write very slowly and nobody will mind
3) you can use dictionaries, the Web, etc. So, it's a good idea to practice writing first until you can build correct sentences quickly enough for speaking.

Don't speak until you've learned to pronounce English sounds
You need to be able to pronounce all the English vowels and consonants in a clear way before you speak. If you don't, you will get used to bad pronunciation.

Don't say a word if you don't know how to pronounce it
In other words, you need to know the pronunciation of all the words that you use. If you don't, you will be making pronunciation mistakes and teaching yourself bad habits.

Remember that you should first get lots of English sentences into your head, then build your own sentences. Your main activity should be reading and listening to English and you will get more examples to follow before you can build your own sentences. The more sentences your brain absorbs, the more you can express in English. If you don't hear enough correct, natural English sentences, you will not know how to say things in English. So you will be inventing your own language. And you will be making mistakes.