能给我一堆must have 怎么用的句子吗?

题目

能给我一堆must have 怎么用的句子吗?
我不会用啊!
i must have asleep ?or i must have been asleep?
i must have gone crazy ?对吗?给我一堆例子参考好吗
拜托了

答案

I must have been asleep.-----right.asleep 是个形容词,前面要用be动词才能做谓语
I must have gone crazy.------right.
must have done表对过去的很有把握的肯定推测,译成肯定干了----
It must have rained last night ,for the ground is wet now.
He didn't finish his homework.He must have gone out to play when I was not at home.