VERBS

be, look, sound
become, get
The weather got very bad later in the day

ADV

extremely, really, very
enough
Things are bad enough without our own guns shelling us
fairly, pretty, quite, rather
John's in a pretty bad mood this morning

PREP

at
He's really bad at maths
for
Smoking is very bad for you

VERBS

be, look, smell, taste
The sausages tasted bad
go, turn
This meat has gone bad

VERBS

feel

ADV

really, very
enough
I feel bad enough without you constantly telling me how it was all my fault!
fairly, pretty, quite, rather

PREP

about
She felt pretty bad about leaving him