6852763
花朵
共回答了19个问题采纳率:89.5% 举报
看例句:
与过去事实相反:
If you【 had told 】me about it yesterday,I 【would have helped】 you then.
从句:had+过去分词,主句 would/could/should/might+have+过去分词
与现在事实相反:
If they【 had】 it,they【 would not come】 to us now.
从句:过去式;主句:would/could/should/might+动词过去式
祝你开心如意!
1年前
2