英文中哪些介词后面应加原型,哪些加ing,哪些加to答:1、enjoy,keep,finish,mind,feel like等后面加ing;2、want,hope,would like,decide,wish,choose等后面加to;3、使役动词make.let.have及感官动词see,hear,watch,look at ,listen to,feel,notice等,情态动词,had better,Why(not)...?Will/Would you please(not)...?后加原型。