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 discussion，have breakfast / …
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 grammar, …
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 种时态？
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，总不是能很好的区分，也 …
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 actions, and things that …
grammar - Use of "have had" , "had had", "has had" - English Language ...
The past perfect form of have is had had (had + past participle form of have). The past perfect tense is used when we are talking about the past and want to refer back to an earlier past time.
"James while John had had had had had had had had had had had a …
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?
grammar - 'I was using', 'I have used', 'I have been using', 'I had ...
Oct 21, 2010 · I had been using cocaine. Meaning, with a reference point in the past, starting a time before then up to the reference point, I was habitually using cocaine up to and including that point.
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.
我一直搞不明白英文中的时态，have worked与 had worked有什么区别 …
had 表示 过去完成时，指过去的某一段时间内完成的事情，之前的动作与现阶段时间不连续。 例：I had worked for this company for 10 years. 我曾经为这家公司工作10年。 是过去的过去发生的事情，如果 …