have has had ...是有什么区别?我对此类的问题很模糊.

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have has had ...是有什么区别?我对此类的问题很模糊.
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have has had ...是有什么区别?我对此类的问题很模糊.
have has had ...是有什么区别?
我对此类的问题很模糊.

have has had ...是有什么区别?我对此类的问题很模糊.
have是原型
has是单三
had是过去式

have has had ...是有什么区别?我对此类的问题很模糊. 过去完成时是had+done为什么在什么情况下had都不用变.而现在完成时的助动词有have和has had+过去式 have/has+过去分词有什么区别,都是什么时态? have & has & had用于句子中有什么区别呢最好有例句 has had 和had had有什么区别? 关于时态的问题have beenhave been 和have had been有什么区别?原句是这样的:I've heard has been good.有have也有has i have had和 i had had 有什么区别? 有soon的句子是一般将来时还是一般过去式?例如:My uncle_____an important meeting in beijing soon.A.will have B.has C.had D.has had have/has+过去分词与have/has+benn done有什么不同?我见有人说现在完成时是have/has+过去分词有人又说是have/has+benn done. had were has have的用法有何不同? have has had是怎么回事,什么样子时在用什么?is are(was,were)呢?有什么句子示例吗 什么时候用have,had,has have/has got与have/has有什么相同? have/has got与have/has有什么相同? 帮忙看看一个英语句子?He has had his hair cut.这是一个have sth done 的句式 意为使某事被别人做句中为什么有两个have 一个has 一个had 请问他们在句子中各有什么作用? He has has been in Green China for 2 years.句中为什么有两个“has”?这是试卷上的一道题我知道has had的意思,是have/has+动词过去分词(也就是had)那么has has呢?是什么成分?还是说has been in是一个结 were是什么的过去式?has和had有什么区别那请问:她前天喝了牛奶,是用she had还是用she has 关于has,do,之类的变化(has,have.had.do,did,does.)这些变化的时候变动的是什么是谓语动词还是什么