only when he comes back can we know about what has happened to him

问题描述:

only when he comes back can we know about what has happened to him
能不能帮我分析一下这是一个什么样的句型,为什么那个can要在we的前面

only在句首要倒装的情况 Only in this way,can you learn English well.Only after being asked three times did he come to the meeting.如果句子为主从复合句,则主句倒装,从句不倒装 Only when he is seriously il...