i never have seen this film befor.这样时候对吗?

I have never seen ( )a car( )this befor 为什么用as.as I have never seen any better film可以与This is the best film I I have never seen _____ film before. so i have seen this film t This is such a wonderful film ——I have never seen before this is the most interesting film .i have never seen such an i have never seen such an interesting film that this one is. I have never seen so interesting a film ——this one is 用关联词填空 I have seen this film.与I had seen this film.区别? i have never seen such an interesting film that I have never seen such an interesting film before I have never seen such a good film.