動詞不定式
1,、作主語
To learn a foreign language is not easy.
It is not easy to learn a foreign language.
2,、作賓語
They began to read.
3,、作賓語補足語
Jim asked me to help him with his lessons.
We often heard her sing.
4,、作定語
I have an important meeting to attend.
5、作狀語
She went to see her grandma yesterday.
6,、用在how, when, where, what, which等之后
I don’t know how to use a computer.
Do you know when to start?
He didn’t know what to do next.
