Not until we lose our health do we realize its value.
问题描述：
Not until we lose our health do we realize its value.
这个英语句子的语法成分、结构,帮忙分析下.
答
We don't realize its value until we lose our health.
你的这句是我这句的倒装形式
当Not until位于句首时,句子要倒装.
其结构为:Not until+从句/表时间的词+助动词+(主句)主语+谓语+……
Not until+（从句）we lose our health+（助动词）do +[we（主语） realize（谓语） + its value]
主句部分倒装是什么情况。主句倒装从句不到装，until we lose our health这句没倒装，倒装的是we don't realize its value；倒装句把否定提至句首，we realize 则变为 do we realize，助动词提前