English is an international language. Even in countries where it is not the first language, it is widely taught and used for administrative purposes. For example, in India English is one of the official languages. It is estimated that the number of people for whom English is the second language is much greater than the number of people for whom English is the first language. However, many people who use English as a second language cannot write without mistakes. In this article, we will take a look at some of the most common writing mistakes of ESL students.