bad
worse / the worst
patient
more patient / the most patient
far
farther / the farthest
dangerous
more dangerous / the most dangerous
tall
taller / the tallest
happy
happier / the happiest
clean
cleaner / the cleanest
lazy
lazier / the laziest
interesting
more interesting / the most interesting
good
better / the best
pretty
prettier / the prettiest
cheap
cheaper / the cheapest
safe
safer / the safest
intelligent
more intelligent / the most intelligent
dirty
dirtier / the dirtiest
beautiful
more beautiful / the most beautiful
healthy
healthier / the healthiest