can和can t过去式（can的过去式是什么和过去分词）

过去式分别是could和could't，例如：

1.We could hear sounds of revelry from next door.

我们能够听到隔壁纵饮狂欢的声音。

2.She confounded her critics and proved she could do the job.

她驳倒了批评者的看法，证明自己能够胜任那项工作。