1)动词+不定式

　　2）动词+不定式；动词+宾语+不定式

　　ask,beg,choose,expect,hate,helpintendlike,love,needprefer,prepare,promise,want,wish…

　　3）动词+疑问词+to

　　decide,know,considerforget,learn,remember,show,understand,see,wonder,hear,findout,explain,tell

　　4)以下动词后,只能跟不定式作宾语.

　　如：agree,ask,aim,arrange,choose,decide,demand,expect,fail,help,hope,lean,long,manage,offer,plan,prepare,

　　pretend,promise,refuse,wish等,这些词大部分可接that引导的从句.

　　5)当复合宾语中的宾语是不定式时,先用形式宾语it代替不定式,把不定式置于补语之后,即：主语＋动词＋it＋补语＋todo句式.

　　动词+宾语+不定式(todo)

　　adviseallowappointbelievecausechallengecommandcompelconsiderdeclaredriveenableencouragefindforbidforceguesshireimagineimpelinduceinforminstructinvitejudgeknowlikeorderpermitpersuaderemindreportrequestrequireselectsendstatesupposetellthinktraintrustunderstandurgewarn

　　to+be的不定式结构,作补语的动词.

　　Acknowledge,believe,consider,think,declare(声称),discover,fancy(设想),feelfind,guess,judge,imagine,know,prove,see(理解),show,suppose,take(以为),understand