did

英 [dɪd]

美 [dɪd]

v. 做，干，办(某事); (以某种方式)做; 行动; 表现; (问询或谈论时用)进展，进行
do的过去式

复数：dids　

柯林斯词典

I didn't give my name because if I did I thought you might not have come.
我没有留下我的名字，因为如果我这么做的话，我想你可能就不会来了。
'I went' in the negative is 'I did not go'.
Iwent（我去了）的否定式是Ididnotgo（我没去）。
Did you see what happened?
你看到发生什么事了吗？
Did you get to see him?
你见着他了吗？
Sorry! Did I step on your foot?
对不起！我踩你脚了吧？
My father did leave his university to fight the Germans
我父亲确实离开了大学去和德国人打仗了。
What Jeff did was to anticipate my next question
杰夫预先回答了我的下一个问题。
I did not conceal anything from him.
我对他什么也不隐瞒。
I did remember to take the present
我的确记得拿了礼物。
I can't think how you did it.
我想不出你怎样做这事的。