English grammar is vast and it is not possible for the students to learn it in great lengths, it is not even needed by the universities and authorities to give admission offer letter and student visa to the aspirant. As there is no need to study it in too detail, the centre teaches the topics which are needed for the purpose of improving the language skills to get good bands by selectively choosing them as per the requirement of the student like tenses, subject & verb agreement, articles, prepositions etc.