{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,Sho

1,If it were not to rain tomorrow,we would go to the park
Were it not to rain tomorrow,we would go to the park.
.(如果明天不下雨,我们就去公园)
2,if you should not attend meeting tomorrow on time,i would punish you.
Should you not be attend meeting tomorrow on time,i would punish you.
(如果明天会议你居然迟到了,我会惩罚你的)
3,if you had not told your parents about it,you would be in danger.
Had you not told your parents about. it,you would be in danger
(如果你还不告诉父母这件事的话,你将处于危险的境地中了)