关于宾语从句 I believe I can fly

Question

刚学习宾语从句 想知道从句一定要包含主谓宾三要素吗
看到i believe i can fly 从句i can fly ，其中can和fly一起够成动词作谓语，但是没有宾语啊，请问英语达人，从句只有主谓就可以吗？

Answer 1

从句不一定

在这句子中，I can fly 做从句，句子省略了that，I can fly整体作宾语成分，从句可以不包含三要素。

类似的句子很多，比如说，I think you are right.

Answer 2

从句就是一个从属于主句的句子。句子,懂么?可以是主谓、主谓宾、主系表、谓宾、主谓宾.宾补....
e.g. I think you are right.
My pen is nice, which was sent by my brother.
I won't go to the party unles she doesn't invite me .
I don't need to do that because you have finshed.本回答被提问者采纳