1old - older - oldest ； elder- eldest
2young - younger- youngest
3small - smaller- smallest
4long - longer- longest
5large - larger- largest
6nice - nicer- nicest
7easy - easier- easiest
8healthy- healthier- healthiest
9heavy - heavier- heavies
10big - bigger- biggest
11beautiful - more beautiful - most beautiful
12wonderful- more wonderful - most wonderful
不明白的再问哟,请及时采纳,多谢!