一般过去时——否定句和疑问句
S + did not + V0 · Did + S + V0?借助助动词 did,所有主语都一样。有了 did 之后,实义动词要“恢复”原形,不再用过去式。 常见错误:过去的标记只出现一次,就在 did 上:I didn't went ✗,I didn't go ✓。
I didn't go to work yesterday.
我昨天没有去上班。
She didn't see him.
她没有见到他。
Did you call me?
你给我打过电话吗?
Yes, I did.
是的,打过。










