Uso de many e much

Many – Ligado a substantivos contáveis – Normalmente usado em afirmativa, negativa e pergunta.
Do you have many books ?
Yes, I have many books.
No, I don’t have many books.

Much – Ligado a substantivos incontáveis – Normalmente usado em negativa e pergunta.
Do you have much money ?
No, I don’t have much money.
Yes, I have a lot of money.

Usamos much na afirmativa ligado a comparativos ou intensificadores.
Maria is much more beautiful than Ana.
I love you very much.
I know this much is true.