havegotten是什么时态

have gotten是过去完成时，过去完成时(The Past Perfect Tense)表示过去某一时间前就已经发生或完成了的动作，对过去的某一点造成的某种影响或是结果，用来指在另一个过去行动之前就已经完成了的事件。

How else could you have gotten the drug testing results?

不然你那次怎么弄到药检报告的？

Technology companies have gotten used to patent litigation in recent years.

近几年来，科技公司已经习惯了专利诉讼。

Ten years ago, could I have gotten to him?

十年前我能对付他吗？

In the old days I could never have gotten to him.

在从前，我绝对不会碰他。

How else could those words have gotten into that web?

还有别人会把那些词写在蜘蛛网上么？