only when he returned did we find out the truth 怎么分析倒装

问题描述:

only when he returned did we find out the truth 怎么分析倒装
怎么还原回原句?这里是主句倒装从句不倒装的状从吗?

we find out the truth only when he returned.这属于主句倒装从句不倒装的状从.only和所修饰的状语如果不在句首,则不倒装.