`1.` tall - taller - the tallest

`2.` long- longer-the longest

`3.` short-shorter-the shortest

`4.` small-smaller-the smallest

`5.` clever-more clever- the most clever

`6.` quiet- quieter- the quietest

`7.` simple- simpler- the simplest

`8.` big-bigger-the biggest

`9.` thin- thinner- the thinnest

`10.` fat-fatter=the fattest

`11.` wet-wetter-the wettest

`12.` hot-hotter-the hottest

`13.` late-later-the latest

`14.` pretty-prettier-the prettiest

`15.` happy-happier-the happiest

`16.` lazy-lazier-the laziest 

`17.` good -better-the best

`18.` bad- worse- the worst

`19.` much - more-the most 

`20.` far- farther- the farthest

`21.` little- less-least

`22.` beautiful- more beautiful- the most beautiful

`23.` interesting- more interesting- the most interesting

`24.` difficult-more difficult- the most difficult

`25.` expensive- more expensive- the most expensive

`26.` intelligent- more intelligent- the most intelligent

`27.` narrow- narrower- the narrowest

`28.` lovely- lovelier- the loveliest

`29.` excited- more excited- the most excited

`30.` curious- more curious- the most curious

`_________________________`
`*` SSH với tính từ ngắn: S+ tobe+ adj_er+than+S

`*` SSH với tính từ dài: S+ tobe+ more+adj+than+S

`*` SSN với tính từ ngắn: S+ tobe+ the adj_est+...+S

`*` SSN với tính từ dài: S+ tobe+the most+ adj+...+S