Happy – happier – the happiest
Great – greater – the greatest
Correct – more correct – the most correct
Good – better – the best
Wide – wider – the widest
Early – earlier – the earliest
Quite – quiter / more quite – the quitest / the most quite
Fast – faster – the fastest
Strong – stronger – the strongest
Busy – busier – the busiest
Unhappy – more unhappy/ unhappier – the most unhappy / unhappiest