| (ADJ) +ly | (ADJ) y → i +ly | (ADJ) le → ly |
| bad → badly | angry → angrily | ample → amply |
| loud → loudly | busy → busily | feeble → feebly |
| smart → smartly | happy → happily | gentle → gently |
| quiet → quietly | friendly → friendlily | simple → simply |
| slow → slowly | noisy → noisily | terrible → terribly |
| (ADJ) e +r / +er | (ADJ) y→i +er | (ADJ) DD +er (short vowel) |
| quick → quicker | sly → slier | big → bigger |
| long → longer | happy → happier | fat → fatter |
| slow → slower | friendly → friendlier | clean → cleaner |
| nice → nicer | messy → messier | mean → meaner |
| (ADJ) e +st / +est | (ADJ) y→i +est | (ADJ) DD +est (short vowel) |
| quick → quickest | sly → sliest | big → biggest |
| long → longest | happy → happiest | fat → fattest |
| slow → slowest | friendly → friendliest | clean → cleanest |
| nice → nicest | messy → messiest | mean → meanest |