English Grammar is the third part of a series that deals with the main aspects of the English grammar. It offers a thorough and detailed explanation of the formation and uses of the present perfect and the present perfect continuous tenses. They are usually considered difficult and need a deep understanding in order to be used correctly. In this book you will find out how to form and when to use them. You will learn the main difference between the present perfect simple and the present perfect continuous, as well as how to avoid some common mistakes. An abundance of exercises provide some further practice after which you feel more confident in your oral and written communication skills.
Free on 18th - 22nd Mar 18
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2018-03-17
