Brave-braver

Cool-cooler

Fit-fitter

Funny-more funny

Good-better

Cute-cuter

Happy-happier

Lazy-lazier

Nice-nicer

Old-older/elder

Original-more original

Quiet-quieter

Friendly-more friendly

Sad-sadder

Short-shorter

Successful-more successful

Talented-more talented

Thin-thinner

Young-younger

Intelligent-more intelligent

XVIII.

Brave-the bravest

Cool-the coolest

Fit-the fittest

Funny-the most funny

Happy-the happiest

Lazy-the laziest

Nice-the nicest

Old-the oldest

Original-the most original

Sad-the saddest

Short-the shortest

Successful-the most successful

Talented-the most talented

Thin-the thinnest

Good-best

Beautiful-the most beautiful

Silly-the most silly

Quiet-the quietest

Hot-the hottest

Sweet-the sweetest

Young-the youngest

Important-the most important

Tall-the tallest