don't的过去式怎么写呀
don't是do和not的缩写形式，它的过去式是didn't。例如，We don't know what is happening over there.(我们不知道那边发生了什么事。)改为过去式是两We didn't know what was happening over students don't have night classes.(那些学生不上晚班。
)它的过去式是：The students didn't have night classes.
dont的过去式don’t的过去式是didnt。
didnt：did not 的常⽤⼝语形式。
did：
v. (以某种⽅式)做 办(某事) ⾏动 表现 (问询或谈论时⽤)进展 进⾏。do的过去式。
扩展资料
There were a whole lot of people I didn't know.
有许多⼈我都不认识。
We didn't have much time.
我们没多少时间。
