这句为什么有两个had had? - 知乎
你好。感谢诚邀。 记住，两个 had 在一起时，就是 have 为 实义动词 的词组（如have a walk ，have a talk ，have a look （at …） ，have a swim ，have a break ，have a …
When do we use “had had” and “have had”? [duplicate]
15 There's no special magic with " had had ", they don't really go together as a pair anymore than " had wanted " go together. So don't worry so much about how to use " had had " as a unit of …
What does "had had" mean? How does this differ from "had"?
For example, what is the difference between the following two sentences: I had a bad day I had had a bad day
如何正确理解 had done、have done、have been doing 这 3 种时 …
如何正确理解 had done、have done、have been doing 这 3 种时态？ 语法书上的那些解释，看来看去都不是很能理解，也谢绝照搬语法书的解释。 看一次，过一段时间又忘了，总不是能很 …
What is the difference between "have had" and "had"?
Feb 12, 2014 · It is used to describe experiences one has had in the past (and that hence influence the experience with which you speak today), changes over time, uncompleted …
present perfect - When is it necessary to use "have had"? - English ...
Nov 10, 2010 · I have come across a few sentences that contain "have had". I would like to know in what kind of situations we should use this combination.
Usage of had in past tense - English Language & Usage Stack …
Being a non native speaker of English I am not sure about the usage of had. In my academics I have learned that had is only used to show that something happened prior to some event in …
had与have had有什么区别？ - 知乎
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"James while John had had had had had had had had had had had …
How "James while John had had had had had had had had had had had a better effect on the teacher" is Correct Sentence? Can anyone explain?
两个had/have在一起……是什么句型？ - 知乎
Aug 23, 2018 · 这个比较复杂，你可以看看百度一下现在完成时具体看看。 第一个have 是助动词，类似于一般现在时里的do，无实际意义。 第二个had是have的过去分词，是实意动词，有 …