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| 1.作主语。 如: To learn English is very important.
 但实际上不定式作主语常用 it来作形式主语,而将不定式移至谓语动词后作真正的主语。
 如上句可表达为:
 It's very important to learn English.
 2.作表语。 如:
 My idea is to ring him up at once.
 3.作宾语。 如:
 I have decided to go to Binjiang Primary School.
 4.作宾语补足语。
 a. ask, want, teach, tell, know, would like, allow等动词后面接动词不定式作宾语补足语。
 如: The policemen asked him to get off the bus.
 b. hear, see, look at, feel, watch, notice, listen to等动词后接不带to的动词不定式作宾语补足语。
 如: We often see Miss Li clean the classroom.
 c. let, make, have这些使役动词后接不带to的动词不定式作宾语补足语。但在被动语态中这些不带to的都须带上to。
 如: In those days the bosses often made the workers work day and night.
 d.动词help接动词不定式作宾语补足语,可带to也可不带to。
 如: Can you help me (to) carry the heavy bag?
 上面就是为大家准备的最新初中英语知识点动词不定式的形式,希望同学们认真浏览,希望同学们在考试中取得优异成绩。
 
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