New - newer - newestOld - older - oldestLucky - luckier - luckiestBig - bigger - biggestNice - nicer - nicestYoung - younger - youngestGood - better - bestSad - sadder - saddestDifficult - more difficult - most difficultAngry - angrier - angriestWarm - warmer - warmestDry - dryer - driestGrey - greyer - greyestEffective - more effective - most effectiveMad - madder - maddestShort - shorter - shortestThin - thinner - thinnestLong - longer - longestPleasant - more pleasant - most pleasantStupid - stupider - stupidestCommon - commoner - commonestPolite - politer - politestAble - abler - ablestLittle - littler - littlest
New - newer - newest
Old - older - oldest
Lucky - luckier - luckiest
Big - bigger - biggest
Nice - nicer - nicest
Young - younger - youngest
Good - better - best
Sad - sadder - saddest
Difficult - more difficult - most difficult
Angry - angrier - angriest
Warm - warmer - warmest
Dry - dryer - driest
Grey - greyer - greyest
Effective - more effective - most effective
Mad - madder - maddest
Short - shorter - shortest
Thin - thinner - thinnest
Long - longer - longest
Pleasant - more pleasant - most pleasant
Stupid - stupider - stupidest
Common - commoner - commonest
Polite - politer - politest
Able - abler - ablest
Little - littler - littlest