I have had a letter from Tom.这个have had 是什么句型啊?

问题描述:

I have had a letter from Tom.这个have had 是什么句型啊?

It is past perfect tense.
This perfect tense just wanna to show you that Before this moment, I already have the letter.

I have had a letter from Tom.
这是现在完成时
第一个have是助动词
第二个have是实义动词,
因为have既可以作助动词,又可以做实义动词,所以在完成始终会比较混乱