This coursebook, containing a theoretical outline of English grammar, is intended as a manual for the departments of English linguistics in Universities. Its purpose is to present an introduction to the problems of up-to-date grammatical study of English on a systemic basis, sustained by demonstrations of applying modern analytical techniques to various grammatical phenomena of living English speech. The suggested description of the grammatical structure of English, reflecting the author's experience as a lecturer on theoretical English grammar for students specialising as teachers of English language. Materials illustrating the analysed elements of English grammar have been mostly collected from the literary works of British and American authors. Some of the offered examples have been subjected to slight alterations aimed at giving the necessary prominence to the lingual phenomena under study.