2. 不定式作补语

　　1) 动词+宾语+不定式(to do)

　　advise, allow, appoint, believe, cause, challenge, command, compel, consider, declare, drive, enable, encourage, find, forbid, force, guess, hire, imagine, impel, induce, inform, instruct, invite, judge, know, like, order, permit, persuade, remind, report, request, require, select, send, state, suppose, tell, think, train, trust, understand, urge, warn

　　a. Father will not allow us to play on the street.　父亲不让我们在街上玩耍。

　　b. We believe him to be guilty. 我们相信他是有罪的。

　　Find 的特殊用法

　　Find 后可用分词做宾补，或先加形式宾语，再加形容词，最后加带to 的动词不定式。find后也可带一个从句。此类动词还有get，have。

　　I found him lying on the ground.

　　I found it important to learn.

　　I found that to learn English is important.

　　4) there be+不定式

　　believe, expect, intend, like, love, mean, prefer, want, wish, understand

　　We didn't expect there to be so many people there. 我们没料到会有那么多人在哪里。

　　注意

　　有些动词需用as 短语做补语，如regard, think believe, take, consider.

　　We regard Tom as our best teacher.　我们认为汤姆是我们最好的老师。

　　Mary took him as her father .　玛丽把他当作自己的父亲。