英语词性变化规律？

英语中各种词性的转换

词性转换类型有：

(1)v.-n.动词转化为名词，

post-postage mail-mail

weigh-weight advise-advice

(2)v.-n.-a.动词转化成名词-形容词

act-actor / actress-active

change-change-changeable

(3) v.-a.-ad.-n.动词转化成形容词，副词，名词

fill-full

need-necessary-necessarily

interest(v. / n.) interested /interesting

(4)n. a. n. a.名词转化为形容词

person personal ( 个人的; 私人的 )

fun funny

(5)n. pl. n. pl.名词转化为名词复数

gentleman gentlemen human humans

（6)a. ad. a. ad.形容词转化为副词

possible possibly probable probably

(7)a. ad. n.形容词转化为副词，名词

true truly truth

lucky luckily luck

(8)原级 比较级 最高级

far farther / further farthest / furthest

little less least