句子结构是这样的.I suggested/the person (refered)/ to be put into prison
refered 是后置定语. 这里 to be put into prison 做补语,不是从句结构
按你的思路也应该是I suggested/ the person refered should be put into prison.整句为宾语从句
suggest后面的宾语从句中的谓语动词要用虚拟语气,即要用动词原形或should加动词原形
公益慈善翻译团!