I don't know what you said还是don't改didn't?

I don't know what you said还是don't改didn't?

看情况 如果是你现在不知道他刚才说什么 就是 don't 如果是指刚才不知道 就是 didn't 不要死记硬背 结合意思

don't，后面said改为say，you后加are