To say is easy,but to do is difficult.(主语)
My wish is to be a doctor.(表语)
I want to go shopping.(宾语)
He wants you to call him back at 11.(宾补)
I have a lot of work to do.(定语)
To tell you the truth,I don't agree with you..(状语,修饰句子)
They have taken many actions to protect our earth.(状语,修饰动词take actions)
I'm sorry to hear that..(状语,修饰形容词sorry)
He is too enough to go to school..(状语,修饰副词too)