todo是一般将来式,是打算去做什么；doing是现在进行式,是现在正在做什么，也有例外，具体情况具体分析。后接todo和doing的动词归纳A.跟不定式（todo）作宾语的动词：want,wish,hope,manage,pretend,decide,learn,agree,expect,demand,long,ask,care,choose,dare,fail,offer,plan,prepare,promise,refuse,desire,happen,appear,intend,wouldliketo,besaidto,B.跟动名词(doing)作宾语的动词：suggest,admit,finish,avoid,mind,enjoy,delay,practice,excusesb.for,advice,consider,escape,miss,risk,dislike,imagine,permit,require(表被动),appreciate(感激),understand,insiston,lookforwardto,getdownto,devoteoneselfto,prefer…to…objectto(反对),putoff,apologizetosb.for,giveup,forgivesb.for,beworth,befondof,begoodat,beslowin,beactivein,beafraidof,betiredof,bebusy,succeedin,prevent/stop/keepsb.from,spendtime(in),havedifficult/troublein,It’snouse/good,beproundof,insteadof.C.跟动名词(doing)和动词不定式（todo）均可的词,含义无区别：start,begin,continue,prefer,like,love,hate,后跟todo表具体和特定的动作,后跟doing表泛指的动作D.跟动名词(doing)动词不定式（todo）均可的词,含义区别较大：1.stoptodo2.meantodo3.trytodo4.agreetodostopdoingmeandoingtrydoingagreetosbdoing5.beafraidtodo6.remembertodo7.forgettodo8.allow/permit/advisesb.todobeafraidofdoingrememberdoingforgetdoingallow/permit/advisedoing9.regrettodo10.wanttodo11.needtodo12.goontodoregretdoingwantdoing(表被动)need(表被动)goondoing13.can’thelptodo14.forbidsb.todo=forbidsb’sdoingcan’thelpdoingforbiddoing5.感官动词+doing/todo感官动词see,watch,observe,notice,lookat,hear,listento,smell,taste,feel+do表示动作的完整性,真实性；+doing表示动作的连续性,进行性Isawhimworkinthegardenyesterday.昨天我看见他在花园里干活了.(强调"我看见了"这个事实)Isawhimworkinginthegardenyesterday.（强调"我见他正干活"这个动作）昨天我见他正在花园里干活.
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