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