I had a bad day i had had a bad day So don't worry so much about how to use had had as a unit of grammar,. 15 there's no special magic with had had , they don't really go together as a pair anymore than had wanted go together.
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例句：he said that he had been to many places of interest this year. 例如：had he succeeded, he would have acquired a monopoly 1、have+过去分词：现在完成时表示的动作发生在过去，以now的时间为基点，但侧重对now产生的结果或造成的影响。 2、had+过去分. 2、when i met her, she had just returned from a job interview 4、he arrived in san francisco, having left new jersey on january 19th 1、had he succeeded, he would have acquired a monopoly 2、if.
Have与had的用法have的用法：1、have +过去分词，构成完成时态。例句：he has left for japan.。他已去了日本。2、have + been +现在分词，构成完成进行时。例句：i have been studying english for 8.
For example, what is the difference between the following two sentences: 英文 have had / has had / had had 的用法跟中文意思 ，你都知道了吗？have had / has had / had had 常常会让人搞不清楚用法，因为它们长得实在太像。不过其实它们非常好理解，前面两个是现在完成.
