Much, many and a lot

Much, many, a lot:

"Much", "many", and "a lot of" indicate a large quantity of something, for example "I have a lot of friends " means I have a large quantity of friends.
Much, many, and a lot are quantifiers.

Study the examples below:

How much money have you got?	I haven't got much money.
	I have got a lot.
	I have got a lot of money.
How many students are in the classroom?	There aren't many.
	There are a lot.
	There are a lot of/lots of students.

In the interrogative forms we use:

• much with uncountable nouns. (money, bread, water...)
  Example:
  How much money/bread/water...is there?
• many with countable nouns. (students, desks, windows...)
  Example:
  How many students/teachers/desks... are there?

(See the lesson on countable and countable nouns )