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 called after you, but you did not hear.
我在后面叫你，但是你没有听到。
Did you find anything?
你找到什么了吗？
I did not conceal anything from him.
我对他什么也不隐瞒。
What did he say?
他说了什么？
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。
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 he mention her?
他提到她了吗？
Sorry! Did I step on your foot?
对不起！我踩你脚了吧？
Did he give up? Not a bit of it!
他放弃了吗？根本没有！