I seen the parade last week.什么语法错误.

I seen the parade last week.什么语法错误. I saw the film last week 为什么和 last week l have seen the flim I have seen the film 与 I saw the film last week的区别 i was to have seen him last week I haven’t seen her since last week.意思? 1.I _____ the park last week. I ( ) her in the street last week the ship was seen sailing in the ocean last week ,appearing Until last week i hadn't seen her since1978,___i had wondere over the last week什么意思 反意疑问句You must have seen the play last week,____you they must have seen the film last week,didn't they?为什么要用didn