nowadays, English language is recognized by people all over the world are a common language to be used in communication, english is the language that the people of thailand use with the second language. The student in Thailand have to study about English language for a long time since they were a little child. why do the most of Thai student still badly communicate although they had learn than ten years. In order to understand them, I will discuss and summarize about these problem from research on internet and reliable sources.