prove既可作行為動詞，又可作系動詞。prove作＂證明是；結果是；事實説明＂解時，用作連繫動詞，可用於以下句型：prove+形容詞，The handbook proved most useful。這本手冊證明很有用。
用作動詞(v.)
prove to(v.+prep.)
prove up(v.+adv.)
1.I have to prove myself as a respectable,balanced,person.
我必須證明自己是個正派、穩重的人。
they prove ineffective they should be demoted or asked to retire.
如果事實證明他們已無力勝任，應該將他們降級或讓他們退休。
e is the strong possibility that such cooperation will prove unworkable.
這種合作很有可能會行不通。
must prove they own?250,000 of realisable assets.
他們必須證明擁有25萬英鎊的可變現財產。
