never have 和never had 有什么区别.列举句子谢谢

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never have 和never had 有什么区别.列举句子谢谢
never have 和never had 有什么区别.列举句子谢谢

never have 和never had 有什么区别.列举句子谢谢
其实不应该这样比较.区别:
never have 从来没有,
They never have time to go to the cinema during the week
他们从星期一到星期五从来都没有时间去看电影.
never had had 是have的过去分词,
I have never had pisa before.
我从来没有吃过披萨

前一个是现在完成时 强调的是从过去持续到现在的动作
后一个是过去完成时 强调的是过去的动作 现在已经不发生了

一般只是时态的区别吧,上下文的背景决定时态。