Adjectives
high (superlative)
the highest
good (comparative)
better than
warm (with two forms)
the warmest
warmer than
expensive (superlative)
the most expensive
little (comparative)
less than
light (with two forms)
lighter than
the lightest
easy (comparative)
easier than
closely (comparative)
more closely
exciting (two forms)
more exciting than
the most exciting