动词按其含义与句子功用,可以分为实义动词、助动词和情态动词.

　　实义动词（也叫作主动词）意义完全,能够独立作谓语,如：

　　Helosthisjobbecauseofautomation.

　　Putthejamonthekitchentable,please.

　　Shehadapaininherside.

　　Thesmallplaneflewlowandfrightenedthelivestock.

　　助动词本身无词汇意义,不能单独作谓语,助动词有do、be、have、will等,它们在句子里与实义动词一起构成各种时态,语态和语气以及否定和疑问结构,如：

　　Doeshehavecoffeewithhisbreakfast?

　　Don'tbesocareless.

　　Thethiefwascaughtintheparkinglot.

　　Thechildiscryingbecausehehasbeenstungbyabee.

　　Iwishhehadn'tgone.

　　Ihaveknownhimsince1960.

　　Wewon'tseehimtillMonday.

　　Willyouhaveameetingtonight?

　　情态动词词义不完全,不能单独作谓语,必须与实义动词一起构成谓语,有shall、should、will、can、may、must、dare、need、oughtto、haveto、begoingto、beto等.

　　Youshouldhavereportedthematertothepolice.

　　Afrightenedbearwillmaulcampers.

　　Thediseasecanresultincripplingparalysisorevendeath.

　　Imayhavemethimbefore.

　　Youmustdosomestretchingexercisesbeforeyouattempttorunamile.

　　Youneedn'tcomesoearly.

　　AnnoughttohaverealizedthatJoewouldn'tdoit.

　　Theydaren'ttellthetruth.

　　希望我能帮助你解疑释惑.