Instead of presenting grammar in the conventional way, under headings such as 'the present perfect' or 'prepositions of time' Natural Grammar is organized around words. Why? Scott Thornbury tells us ''Very simply, words have grammar. That is to say, when you use a word you are obliged to choose from the particular grammar patterns associated with that word.'' Let's look at some examples using for: for + noun phrase e.g. This book is for students and teachers for + ing e.g You can use a compass for telling the time for + noun phrase + to - infinitive e.g. I'm waiting for him to call So, if you learn the grammar of for you are learning at least three important grammar patterns in English. What's more, these grammar patterns cover all of the most important grammar structures in English so your students can be confident they are still learning what we could call the 'traditional' grammar structures. In fact there is a list on page ii o