Once upon a time there lived a professor. He was considered the professor in his university. CLEVER Many students wanted to come to lectures. HE Once he a lecture on the English language. GIVE He explained the rule to the students and then said. ONE “Well, the next rule is that in English you use double negative. You know, there are languages where a double negative forms a positive. However, there is no such a language where a double positive makes a negative.” NOT CAN Right there he a voice from the back of the room, “Yeah, right.” HEAR