CONDITIONAL SENTENCES If you do something, something will happen. That's an example of a typical conditional sentence. It has two parts. An 'if clause' and a main clause. In spoken English, in particular circumstances, it's possible to leave out the main clause. Tim looks at how and when this happens in this video. Watch and tell me which of these is not a polite request: a) If you could just help me with this. b) If you wouldn't mind passing me the stapler. c) If you do that one more time! | BB