Student or Learner
Can bad be used as an Adverb in the second example that has the same meaning as sentence 1?
1. Peter cooks badly.
2. Peter cooks bad.
In some regional forms, you will come across usage like that, but not in standard usage.
Peter is a bad cook. He cooks badly. His cooking skills are sub-par.
His hamburgers taste like old sneakers.
Bad is often used informally as an adverb by native speakers.
'I need that scholarship so bad that it hurts.'
'I broke my leg in two places. Boy, it really hurt bad!'
Rover has made an interesting point.
While "He cooks bad" sound awful to me, "It hurts so bad!" or "I need it so bad!" do not. (The addition of "so" makes a difference to my ear, in any case.
I wonder if "cooks," as a verb of action, needs that true adverb (badly) while "hurts" or "needs" is more of a stative (right term?) verb.
I'm just asking - not suggesting! I don't know why one is objectionable and the other is not.
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.
I avoid this problem by never feeling bad (or badly).
In this sentence, bad is an adjective.(2) "I hurt his feelings. Now I feel bad."