John Dow -- English Grammar in use
Words are fundamental units in every sentence, so we will begin by looking at these.
Consider the words in the following sentence: my brother drives a big car
We can tell almost instinctively that brother and car are the same type of word, and also that
brother and drives are different types of words. By this we mean that brother and car belong
to the same word class. Similarly, when we recognise that brother and drives are different
types, we mean that they belong to different word classes. We recognise seven MAJOR word
classes:...
