should的过去式是什么
should是情态动词没有过去式。情态动词后面接动词原形。can的否定是can't.may的否定是 mustn't.must的否定是needn't.should的否定是shouldn't....
TAG：should的否定形式
would的否定英语句子
否定形式就是+not变成wouldn't。 例： ①I would not/wouldn't like noodles.我不想要面条。 ②You wouldn't like that, and I wouldn't. 你不会喜欢那样的，我也不会。 ③No, I wouldn't like to come with you. 不，我不愿意跟你一起去。 ④I wouldn't like to be in your place. 我可不想处于你的境地...