初三现过去完成时造1句have ,come back,supermarket

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初三现过去完成时造1句have ,come back,supermarket
初三现过去完成时造1句
have ,come back,supermarket

初三现过去完成时造1句have ,come back,supermarket
He had come back from the supermarket before 5 o'clock.
五点钟以前他已经从超市回来了.

I had come back from the supermarket at that time
come的过去分词还是come

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Befor 5 o'clock,I had come back frome the supermarket.
5点钟以前我已经从超市回来了
过去完成时基本结构应该是：
主语+had+过去分词vpp.(done)
①肯定句：主语+had+过去分词.
②否定句：主语+had+not+过去分词.
③一般疑问句：Had+主语+过去分词? 肯定回答：Yes,主语+had. 否定回答：No,主语+had not .
④特殊疑问句：特殊疑问词或词组+一般疑问句（Had+主语+过去分词）？

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we had already come back from the supermarket by then

初三现过去完成时造1句have ,come back,supermarket 初三过去完成时句子 i have had enough 这算什么句?过去完成时? 过去完成时的特殊疑问句过去完成时：i have spent all of my money.过去完成时否定句：i have not spent all of my money.过去完成时一般疑问句：have you spent all of your money过去完成时特殊疑问句：特殊疑问 have的过去完成时请问下过去完成时的用法have you been there?yes ,i have just been there.i had never been there before.请问i have just been there.为什么这句不能用过去完成时而后句又为什么要用过去完成时? have的过去完成时形式是什么. 过去完成时的肯定句构成现在完成时过去完成时怎样强调动词是have/had done+动词原型吗强调句例如：that does sound great. 过去完成时过去完成时 have got 可不可以是 got 的过去完成时? 过去完成时什么时候用have 什么时候用had? it is the third time you have arrived late this month.1.为什么用现在完成时而不是过去完成时?2.句中的arrived为什么不能替换成reached? 过去完成时的特殊疑问句表达I have spent all of my money.这句的一般疑问句以及特殊疑问句怎么表达造一些过去完成时的句子 1.i have been there before.2.i had been there before.句1的用法正确么我之前去过那里可是现在并不在那里不是应该过去完成时么因为是在过去的时间去过那为什么还会有have been there before 什么区别这两句子有什么区别?虚拟语气1,表示于过去事实相反的假设.句型：条件从句主句过去完成时 should(would) have+ 过去分词A If she had worked harder,she would have succeeded.2,混合条件句主句与从句的动作