关于英语虚拟语气条件句中省略if把Had 、were等提前,not应该放在什么位置?

当虚拟条件句的谓语动词含有were,should,had时,if可以省略,这时条件从句
要用倒装语序,即把were,should,had等词置于句首,这种多用于书面语.
eg： 　　
Should he agree to go there,we would send him there. 　　
要是他答应去的话,我们就派他去. 　　
Were she here,she would agree with us. 　　
如果她在这儿的话,她会同意我们的. 　
① 若条件从句为否定句,否定词not应置于主语之后,而不能与were,should,had 等缩略成Weren’t,Shouldn’t,Hadn’t而置于句首.
② 有时省略if后提前的had不是助动词：
Had I time,I would come. 假若我有时间,我会来的.(=If I had time…)


如果不是你救了我,我早就死掉了.
Had you not saved me,I would have been dead

放在主语后面，找了几个例句
Had I not been in New York these past six years, I would have missed many more.
如果我不是过去这六年来一直住在纽约的话，我会错过更多。
'Had I not gone on the trip, I would have gone over to China to ...

not跟着had 和 were
变成Hadn‘t 或者Were not

Were it not ,,,
Had I not done ,,,,.