Imagine trying to speak without expressing possibility, permission,or necessity; it would be like painting without colour. That’s were the modal verb step in. These special helping verbs—can, could, ...

A simple sentence is built from the minimum of a subject and a main verb. It can be very short in length (but doesn't have to be): 'The angry dog barks.' It puts across one simple idea: 'Rebecca sang.

Sometimes you can guess the meaning of a phrasal verb because it is related to the main verb. Look at this example again. Shall we give away all the old books in the office? The meaning is clearly ...