bad
He dances badly
happy
he cooks happily
dangerous
They drive dangerously
loud
he snores loudly
powerful
he hits/punches powerfully
safe
It crosses the road safely
crazy
He dances crazily
angry
He shouts angrily
skillful
he drives skillfully
beautiful
she sings beautifully
quiet
he whispers quietly
quick
the car travels quickly
fast
he eats fastly
slow
he runs slowly