I think grammar could be used as a weapon. The police should come in with a loud speaker and just start explaining the rules of grammar across the crowd, he says. Listen carefully while I'm talking here and try to notice the different tenses okay that's your task while you're listening to this. We are now going to cover the main uses of the various forms of grammatical structures in the English language. So for example oh there's the present perfect or that's a first conditional structure for exampleor oh that's the future perfect continuous passive there I love that one etcOkay then I'll go through it all and explain it at the end and as i said you can read this stuff