have.ever.你有没有吃过A可否用have you ever eat

Did you ever...和Have you ever...有什么区别?什么时候用Did you ever...什么 have you ever 和 do you ever 有什么区别? Have you ever Have you ever.. Have you ever been Have you ever heard Have you ever时态 Have you ever noticed Have you ever picked 造句：Have you ever. have you ever 和 did you ever Have you ever e______ a singing competition?