'Much' can be a noun, an adjective or an adverb, but not a verb.'Much has been said about the problem, but little done.' (Noun)'Much nonsense has been talked about the problem.' (Adjective)'It would...
It can be both. For adverb "much" is defined as: to a great extent or degree; greatly; far; much heavier; nearly, approximately, or aboutEx.: to talk too much & This is much like the othersFor...