Slow - slower - the slowest

Large - larger - the largest

Bad - worse - the wors

Dangerous-  more dangerous - the most dangerous

Heavy - heavier - the haviest

Shy - shier - the shier

Expensive - more expensive - the most expensive

High - higher - the highest

Slower-the slowest

Larger-the largest

Bader-the badest

More dangerous-the most dangerous

Heavier-the heaviest

Shier-the shiest

More expensive-the most expensive

Higher-the highest