关于倒装时态的问题

Not until he returned did we had supper.

Not until he returned did we have supper.

Not only did he said，but also he did.

Not only did he say，but also he did.

哪个对？？？？？？？

很容易看出来啊！

Not until he returned did we have supper.对。根本不存在did we had这种事态。

Not only did he say，but also he did. 因为did he said也不存在啊。

任何时候，有did做助动词，后面必须是原型。