ABSTRACT
Everything must always be somewhere in time or space. Prepositions tell us where people or things are, or where they are going, and how and when things happen: at the moment, you are sitting at your desk and your cat is possibly sitting on it, or your dog is stretched out behind it This book is on your desk and in your hand you have a pen. But perhaps you want a cup of tea. So you will go out of your room and into the kitchen…. And in the evening you'II go out with a friend…. And so on. Prepositions are a vital part of language structure, arguably more important than, say, adjectives. Without them, in a manner of speaking, we would be lost in space or time.
