原句是He had changed so much that I could hardly recognize him.
改为倒装句,正确答案是So much had he changed that I could hardly recognize him.
我想问为什么不能改为So much changed he had that I could hardly recognize him.
changed和had不都是谓语吗?这个是部分倒装,那为什么不能把changed放到前面呢?