I
adj.
1) bad for (smoking is bad for your health)
2) bad to + inf. (it's bad to lie)
3) bad that + clause (it's too bad that he was not able to attend the meeting)
4) (misc.) not bad ('quite good'); not half bad ('fairly good'); that's (just) too bad ('nothing can be done about that')
II
n.
1) (colloq.) to be in bad with smb. ('to be on bad terms with smb.')
2) to go from bad to worse