i was disappointed to see the machine go wrong ,to see the machine go wrong 在句中作什么成分呐

i was disappointed to see the machine go wrong ,to see the machine go wrong 在句中作什么成分呐
i was disappointed to see the machine go wrong ,to see the machine go wrong 在句中作什么成分呐

i was disappointed to see the machine go wrong ,to see the machine go wrong 在句中作什么成分呐
做补语肯定是错的,补语就是宾语补足语,这个句子当中没有宾语,哪来的宾语补足语?
was disappointed是系表结构做谓语.后面的不定时是原因状语.

按照主、谓、宾这样的顺序来的话，那to see。。。 就是宾语补足语吧。。。。
我的感觉

不定式to see the machine go wrong 作 disappointed 的补语，说明原因。