This book has been designed to meet the requirements of students whose mother tongue is not English. Its main purpose is to help to correct the common mistakes to which foreign learners of English are liable.
The method adopted throughout this work is uniform. All the errors dealt with arc singled out, for they have to be recognised before they can be corrected; then correct forms are substituted for incorrect ones; finally, simple explanations are given wherever necessary to justify particular usages. Exercises are set at the end to ensure that the principles may become firmly fixed in the students' minds.