long - longer - the longest
large - larger - the largest
thick - thicker - the thickest
comfortable - more comfortable - the most comfortable
interesting - more interesting - the most interesting
good - better - best
bad - worse - worst
much - more - most
little - less - least
few - fewer - the fewest
necessary - more necessary - the most necessary
possible - more possible - the most possible
expressive - more expressive - the most expressive