1)     有些有动词+宾语+不定式的结构。例如:
| 
 advise  | 
 allow  | 
 cause  | 
 challenge  | 
 command  | 
 compel  | 
| 
 drive 驱使  | 
 enable  | 
 encourage  | 
 forbid  | 
 force  | 
 impel  | 
| 
 induce  | 
 instruct  | 
 invite  | 
 like/love  | 
 order  | 
 permit  | 
| 
 make  | 
 let  | 
 have  | 
 want  | 
 get  | 
 warn  | 
| 
 persuade  | 
 request  | 
 send  | 
 tell  | 
 train  | 
 urge  | 
    例如;
Father will not allow us to play on the street.  父亲不让我们在街上玩耍。      
The officer ordered his men to fire. 长官命令士兵开火。
注意:有些动词如make,have,get,want等可用不定式作做宾补,也可用分词作宾补。现在分词表达主动,也表达正在进行,过去分词表达被动。
2)      有些有动词+宾语+不定式的结构,不定式的动词往往是be,不定式一般可以省去。例如:
| 
 consider  | 
 find  | 
 believe  | 
 think  | 
 declare(声称)  | 
 appoint  | 
| 
 guess  | 
 fancy(设想)  | 
 guess  | 
 judge  | 
 imagine  | 
 know  | 
   例如:
We believe him to be guilty. 我们相信他是有罪的。
We know him to be a fool. 我们知道他是个笨蛋。(to be 不能省去)
典型例题
   Charles Babbage is generally considered ___ the first computer. 
A. to invent B. inventing  C. to have invented  D. having invented  
答案:C. 一般没有consider+宾语+be以外不定式的结构,也没有consider+宾语+doing的结构,排除A、B、D。consider用动词be以外的不定式作宾补时,一般要求用不定式的完成式,故选C。
3)      有些动词可以跟there +to be的结构。例如:
| 
 believe  | 
 expect  | 
 intend  | 
 like  | 
 love  | 
 mean  | 
| 
 prefer  | 
 want  | 
 wish  | 
 understand  | 
    | 
    | 
   例如:
  We didn't expect there to be so many people there. 我们没料到会有那么多人在那里。
   You wouldn’t want there to be another war. 你不至于想让另外一场战争发生吧。
