fit, noisy safe, bright, close, thin, heavy, cheap, high, hot, sunny, big, funny, fat, wide, happy, nice, long, large.
-er, -est: small - smaller - smallest:
cheaper, cheapest
higher, highest
brighter, brightest
longer, longest
-r, st:
safer, safest
nicer, nicest
larger, largest.
wider, widest
closer, closest
-ier, -iest:
nosier, nosiest.
funnier, funniest
heavier, heaviest.
sunnier, sunniest
happier, happiest
double consonant + er, est:
fitter, fittest.
thinner, thinnest
hotter, hottest
bigger, biggest
fatter, fattest