unless 不构成倒装的条件

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祝你学习进步,更上一层楼!(*^__^*)】I didn't realize I had left my bag until the flight had taken off.的倒装句怎么变呢？O(∩_∩)O谢谢哦Not until the light had taken off did I realize I had left my bag这是否定副词前置引起的部分倒装改的时候有什么方法么？这个你记得， 表示“直到。。。。时候才”， not一般置于until　前，　而如果否定副词置于句首，一般要用部分倒装再如：I have never seen him= Never have a seen himHe cares little for money=Little does he care for money