“本该做某事却没做”英语可以怎么说呢?

1. should have done but I haven't done it 本该做某事却没做
例子：I should have visited you yesterday, but something blocked me temporarily
2. intend to do 想去做
3. must+have+v -ed 表示一定，想必

should have done

这个高中学过的,我记的很清楚!
sb.should have done sth.
比如：我本该去图书馆的,可是雨太大了,就没去
I should have gone to the school liberary ,but it rained heavily,so i did not .

should have done 本该做某事却没做...