不定词（Infinitives）作为形容词和副词
不定词可以用作名词，也可以用作形容词，以下都是不定词用作形容词的例子，要注意的是不定词不会放在名词的前面：
You don't have the right to talk so loudly.
He is to blame.
To see is to believe.（To see是名词，to believe是形容词）
My job is to teach poor kids to learn.
We all have the duty to serve our country.
He has a talent to sing.
I don't have time to play.
He is a person to be liked by us all.
This is a book to be read by all students.
He has no money to spend.
This is not a good place for kids to grow up in.
This law is to protect innocent citizens.
I am glad to see you.
He is ready to start a war.
He is rich enough to buy the entire building.
They are afraid to die.
He has no right to kill anyone.
John is too weak to do this job.
My mother is too old to drive a car.
It is easy to fall behind in school.
