have/had+动词过去式与Did的区别是什么?

have/had+动词过去式与Did的区别是什么? have you had dinner 和 did you have dinner 的区别是什么?完成时和过去式就不要说 was were＋动词ing与be＋动词过去式区别,had＋pp.与have\has＋pp.的区别 have 加动词过去式与动词过去式有什么区别 have的动词过去式是什么 Have后面加动词过去式和Had后面加动词过去式有什么区别? have had did do 的区别 have been加动词过去啦式 与have 加动词过去式的区别 关于动词过去式与did have to加动词的过去式,had to加什么? 英语时态用法have +动词过去式 与have been +动名词的区别 have、had、has的区别与用法是什么?