I'm not sure if you will succeed in the exam.的句子成分

问题描述:

I'm not sure if you will succeed in the exam.的句子成分
尤其是if you will succeed in the exam在句子中的成分.

if引导宾语从句这个从句是谁的宾语?主句是I'm not sure 从句if you will succeed in the exam是做sure 的宾语