they all felt sleepy because they found the lecture hard----to have been understood为什么不对?不是found吗?过去时啊不定式也有时态的亚不过我问的是为什么have不对,答案只是to understand如果to have understood呢
来源:学生作业帮助网 编辑:作业帮 时间:2024/09/06 14:09:46
![they all felt sleepy because they found the lecture hard----to have been understood为什么不对?不是found吗?过去时啊不定式也有时态的亚不过我问的是为什么have不对,答案只是to understand如果to have understood呢](/uploads/image/z/7351160-32-0.jpg?t=they+all+felt+sleepy+because+they+found+the+lecture+hard----to+have+been+understood%E4%B8%BA%E4%BB%80%E4%B9%88%E4%B8%8D%E5%AF%B9%3F%E4%B8%8D%E6%98%AFfound%E5%90%97%3F%E8%BF%87%E5%8E%BB%E6%97%B6%E5%95%8A%E4%B8%8D%E5%AE%9A%E5%BC%8F%E4%B9%9F%E6%9C%89%E6%97%B6%E6%80%81%E7%9A%84%E4%BA%9A%E4%B8%8D%E8%BF%87%E6%88%91%E9%97%AE%E7%9A%84%E6%98%AF%E4%B8%BA%E4%BB%80%E4%B9%88have%E4%B8%8D%E5%AF%B9%EF%BC%8C%E7%AD%94%E6%A1%88%E5%8F%AA%E6%98%AFto+understand%E5%A6%82%E6%9E%9Cto+have+understood%E5%91%A2)
they all felt sleepy because they found the lecture hard----to have been understood为什么不对?不是found吗?过去时啊不定式也有时态的亚不过我问的是为什么have不对,答案只是to understand如果to have understood呢
they all felt sleepy because they found the lecture hard----
to have been understood为什么不对?不是found吗?过去时啊
不定式也有时态的亚
不过我问的是为什么have不对,答案只是to understand
如果to have understood呢
they all felt sleepy because they found the lecture hard----to have been understood为什么不对?不是found吗?过去时啊不定式也有时态的亚不过我问的是为什么have不对,答案只是to understand如果to have understood呢
to是动词不定式后面跟动词原型
关于不定式时态
过去时 to do
完成时 to have done
此句逻辑主语是They
所以understand的语态要与逻辑主语一致,不用被动
补充:因为此处不定式做宾语补足语,与时态无关
find sth. to do
do不因find的时态改变而改变,因to+原形do。
they all felt sleepy because they found the lecture hard to understand
一般understand不用于完成时态。