使役动词是表示使、令、让、帮、叫等意义的不完全及物动词,主要有make(使,令),let(让),help(帮助),have(叫）
1.使役动词后接受词,再接原形不定词作受词补语
例如：He made me laugh.他使我发笑.
2.使役动词还可以接过去分词作受词补语.
I have my hair cut every month.
我每个月理发.
3.使役动词的被动语态的受词补语用不定词,不用原形不定词
(主)He made me laugh.
他使我笑了.
(被)I was made to laugh by him.
我被他逗笑了