英语这里的find为什么不是过去式

问题描述:

英语这里的find为什么不是过去式
When my husband was going into the dining room this morning,he dropped some coins on the floor.There were coins everywhere.We looked for them,but we could not find them all.
最后一句的find为什么不是found呢?这不是在说过去式吗?

①呃,把眼睛擦亮点哦~是过去式没错啦~不过could本身就是can的过去式啦^^,既然can是情态动词,其后加动词原形就很自然哦~
Thanks.