英语词性
转换七大规则及例子
(1)动词转化为名词， post-postage mail-mail weigh-weight advise-advice
(2)动词转化成名词-形容词 act-actor / actress-active change-change-changeable
(3)动词转化成形容词，副词，名词 fill-full，need-necessary-necessarily interest(v. / n.) interested /interesting
(4)名词转化为形容词 person personal ( 个人的; 私人的 词性转换) fun funny
(5)名词转化为名词复数 gentleman gentlemen human humans
(6)形容词转化为副词 possible possibly 词性转换 probable probably
(7)形容词转化为副词，名词 true truly truth lucky luckily luck
