| Ever  means 'at any time', the specific time is unknown or unnecessary, and is used in questions. Have you ever met a famous person ? (Did you meet a famous person at any time in the past?) | Never  is originally a contraction of 'not ever'. | 
        
            | Ever is also used with nothing, nobody for things that haven't happened before. Nobody has ever travelled through time. | Never means the subject hasn't had a certain experience  before. Have you ever been abroad? No, I've never been abroad. (I've never had that experience before.) | 
        
            | Ever is also used with 'the first time' for first experiences.  This is the first time I've ever eaten snake soup.  | Never can be used in negative questions to show the surprise that you've never had a certain experience before.    Have you ever played soccer?   |