Right now I'm in a fire escape. Why? Because I'm lost. So in the past I didn't pay attention. So the past situation that didn't happen is me paying attention. So we can use a third conditional here, we can say: if I had paid attention, I wouldn't have got lost . OK? If I had paid attention, I wouldn't have got lost . Let's think of one more. But, if I hadn't got lost, I wouldn't have found this beautiful, very beautiful number three . So, this number three... third conditional... see the connection? Hopefully this will help us remember when to use it. If I hadn't got lost, I wouldn't have found this number three .