very + adjective very pretty, very cold, very nice
very + adverb very quickly, very slowly
much + noncount noun -- usually used in a NEGATIVE sentence in American English (in affirmative sentences we will use "a lot of')
I don't have much time.
I don't have much money.
She doesn't speak much English.
very much = a lot / used after a verb. Also more commonly used with negative sentences, but you will hear it with affirmative sentences. (with affirmative sentences, we will use " a lot"
I like him very much.
She doesn't speak very much.