举例如下：
1.---y:greedy,dirty,bloody,cloudy
2.---ly:friendly,brotherly,weekly,monthy
3.----ful:wonderful,beautiful,careful,meaningful
4.---able:believable,readable,workable,acceptable
5.---ing:exciting,interesting,charming,admiring
6.---ed:gifted,aged,talented,crowded
7.--ish:childish,boyish,greenish,redish
8.--ous:generous,prestigious,grievous ,mountaionous
9.---ern:western,northern,modern,eastern
10.---al:literal,brutal,racial,oriental