Usage of much and many

Much and Many

Much

Much means ‘a lot of’. It is used with singular nouns.

• There isn't much food in the house.
• I don't have much free time.
• You always give me too much trouble.

Before a pronoun, a geographical name or a noun with a determiner, we use much of.

• She does much of her writing at home.
• Much of this region is hilly.

Much can be used without a noun if the meaning is clear.

• You have given me too much. I can't eat it all.

Much can modify comparatives and superlatives.

• I feel much better today.
• This is much the best novel I have read.

Much can also modify adjectives, adverbs and verbs.

• I am much annoyed at his behaviour.
• I don't like mangoes much.
• She likes them very much.

Much and Many 

Much is used with singular nouns; many is used with plural nouns.

• I don't have much free time due to the demands of work.
• She didn't eat much breakfast.
• Many children are there in the park today.
• He was among the many visitors to the site.
• Among his many faults is self-importance.

Before a pronoun, a determiner or a geographical name we use many of.

• Many of us thought that he was a fool.