Ответ:
young, younger, the youngest
easy, easier, the easiest
tall, taller, the tallest
big, bigger, the biggest
good, better, the best
nice, nicer, the nicest
many, more, the most
difficult, more difficult, the most difficult
experience, more experience, the most experience
bad, worse, the worst
pretty, prettier, the prettiest
clean, cleaner, the cleanest
вроде так