I.
1 longest
2 smaller
3 funny
4 nice
5 faster
Il.
1 taller
2 cleverer
3 cleaner
4 biggest
5 best
Ill.
good better the best
old older the oldest
nice nicer the nicest
happy happier the happiest
modern more modern the most modern
important more important the most important
silly sillier the silliest
bad worse the worst
IV.
1 larger
2 more interesting
3 best
4 the funniest
5 most beautiful
6 stronger