Amy is feeling good [good is an adjective]
Amy writes well [well is an adverb]
Amy is doing good [WHAT IS "GOOD" in this sentence - adjective or adverb and WHY???]
the first two senteces are taken from manhattan.
thanks in advance
do you mean the following:
Amy is doing good [good is an adverb]
Amy is doing well [well is an adjective]
"Amy is doing well"
Here "well" is an adverb.
I've always regarded well as an adverb (she writes well) and an adjective (I'm well) and good as an adjective (the cake tastes good, he's a good student etc...) although informally it may be used as an adverb . However, not everyone on this forum feels the same way. I remember taking part on a thread on the difference between good and well.
You might find it interesting.