By listening to English language speakers, the learner can gain enough knowledge. He will be able to know different spoken words along with their style of speaking. He will also be able to use the listened words into his own sentences.
By writing in English language, the learner will be able to use the language and evaluate his made mistakes. Writing improves the structure of sentences. By continuous writing practices of English language, the language will be improved to a great extent.
By reading different works written in English language such as books, articles, newspapers and so on, the learner will be able to improve his language as he will know how different words and sentences are used in English language.Therefore, it can be said that English language can be improved to a great extent by listening, writing and reading English. A learner is able to learn English language by judging language use by listening, writing and reading and his language will be improved for sure.