I need more time for my studies and have had to cut back on the outside 这个句子中为什么用have had to?

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I need more time for my studies and have had to cut back on the outside 这个句子中为什么用have had to?
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I need more time for my studies and have had to cut back on the outside 这个句子中为什么用have had to?
I need more time for my studies and have had to cut back on the outside 这个句子中为什么用have had to?

I need more time for my studies and have had to cut back on the outside 这个句子中为什么用have had to?
将 have had to 理解成 have to 的完成式,可译作:不得不.

句子有问题的。去掉had。

had to 是词组表示不得不,have表示完成时,指之前做现在不做了,所以用have had to

前面的have是作为完成时的助动词,后面的是have+done里面的过去分词

这是have to这个短语的现在完成时形式