Acknowledgements
I started writing the first version of this book while I was teaching English grammar to English teacher trainees at the Juhász Gyula Teacher Training Faculty of the University of Szeged in Szeged, Hungary. I would like to thank all my students who have studied from this book since then for their useful feedback on the material. I am also grateful to my colleagues for their help and encouragement.
Special thanks go to my colleague Tibor Borbás, who worked with me in the initial stage of the project and contributed greatly to the first version of the text.
Finally, I would also like to thank the proofreader Thomas A. Williams for his meticulous corrections and helpful advice.