had和have had
【1】后接过去分词，构成现在和过去完成、完成进行时。例如：
a) He has gone to Beijing. 他已经到北京去了。
b) I have been a teacher since then. 从那时起我就一直当教师。
c) They had left when I got there. 我到那里的时候，他们已经走了。
d) He has been working hard since early morning. 丛一大早他就一直在下劲干活。
【2】 has /have had也可以作为一般动词，意为“拥有”“进行”“吃”“使得”“让”等。如果后接不定式，意为“不得不”。因为它们不是特殊动词，所以不能在它们后面加not构成否定句，不能把它们移到句首构成疑问句。例如：
a) He has a good pen. 他有一支好笔。
b) We have supper at 6:00. 我们六点钟吃晚饭。
c) I had my hair cut yesterday. 我昨天理了发。（我让我的头发被剪了，昨天）
d) I have to leave now. 我得走了。
都表示过去时的一种动作形态：
had 是完成时,而have had是现在完成时.have had动作发生的时间要比 had早
举例一：
Non-fossil fuels including hydro, nuclear and other renewable sources had also provided a bigger overall contribution to global energy supply growth in 2014 than fossil fuels, for the first time in 20 years.
另外，在2014年，包括水能、核能和其他可再生能源在内的非化石能源对全球能源供应增长的合计贡献超过了化石能源，这是20年来的头一次。
举例二：
The hotels are full up, and the guests have had to go to this dinky little Motel way out on Stewart Avenue.
宾馆已经客满了，客人们不得不到斯图尔特街上这家偏远的小汽车旅馆里来。
举例三：
We have had several preliminary sittings in various poses.
我们进行了几次预拍摄，摆了各种不同的造型。
have had： 过去分词， 指动作对现在有影响或持续到现在
have had 现在完成时
had 过去时
eg: I had a party yesterday.
我昨天举行了一个聚会
I have had my breakfast.
我已经吃过早餐了。
have had 以前持续做，不过已经结束了
had：曾经做过
have had 现在完成时
had 过去时
须史锐宁：[答案] have had 现在完成时 had 过去时 eg:I had a party yesterday. 我昨天举行了一个聚会 I have had my breakfast. 我已经吃过早餐了.
尤溪县13683926725： had和have had - ？
须史锐宁： have had 现在完成时 had 过去时 eg: I had a party yesterday.我昨天举行了一个聚会 I have had my breakfast.我已经吃过早餐了.
尤溪县13683926725： have had和had had的区别及其用法 还有例句 - ？
须史锐宁： 首先这两种用法后面的had 都是作实义动词用,表示“有”、“吃”等意思 前面的have 表示现在完成时态,后面的had had,黑体had 表示过去完成时态,例句如下: I have had the dinner. 我吃过晚饭了.现在完成时态 They had already had breakfast before they arrived at the hotel yeaterday. 昨天他们到达宾馆的时候,已经吃过了早饭了.过去完成时态 供参考
尤溪县13683926725： have和have had和had had 分别在什么情况下用 请大家说明白点我是真不懂 - ？
须史锐宁：[答案] have 一般现在时 have had 现在完成时 had had 过去完成时
尤溪县13683926725： have has had有什么区别? - ？
须史锐宁： 这个很简单啊,前两个是一般现在时时态的写法,后面一个是一般过去时的写法,而一般现在时普通都用have,只有第三人称单数用has,就是这几种区别吧,很简单了.
尤溪县13683926725： 怎样才能正确理解have和had.不知道什么时候用HAVE & HAD - ？
须史锐宁：[答案] 1.当作“有”讲时,现在时用have,过去时用“had” 2.在时态里面,现在完成时的助动词是“has”或“have”,过去完成时不论主语是什么人称,助动词都用“had”.
尤溪县13683926725： have一 had一had用英语怎么读 - ？
须史锐宁：[答案] 原文: have一 had一had 英式音标: [hæv] [hæd] [hæd] 美式音标: [hæv] [hæd] [hæd]
尤溪县13683926725： has had 和had had有什么区别? - ？
须史锐宁： has had 是现在完成时,had had 是过去完成时,has had 的 has 是第三人称,也就是“他”“她”“它” has had 意为拥有,已经拥有完了,现在还拥有,而had had 是过去拥有,现在不拥有了.
尤溪县13683926725： have与had的用法 - ？
须史锐宁： 当主语是(I, we, they)时用have,had 是have的过去式.用法:1、后接过去分词,构成现在和过去完成、完成进行时.例如:2、 have had也可以作为一般动词,意为“拥有”“进行”“吃”“使得”“让”等.如果后接不定式,意为“不得不...
