Much is used with uncountable nouns, many with plural countable nouns:
I don’t have much time.
Does she have many friends?
Much and many are used mainly in interrogative and in negative forms. In affirmative sentences we use a lot (of), lots (of), loads (of), plenty (of), particularly in a colloquial style:
He has lots of friends.
There’s still plenty of time before the play starts.
Much and many are commonly found in affirmative sentences after too, so, as and very:
She spends too much money on clothes.
I’ve received so many gifts this year.
Write down as many words starting with “s” as you can.
Thank you very much.
In formal style, much and many are also used in affirmative forms:
There is much to say about this issue. Many experts argue that …
Much and many can be used without a noun if the meaning is clear:
“Was there a lot of traffic?” “No. Not much, really.”
“Have you met any interesting people at work?” “Not many.”
Much and many can be used with of + a determiner or a pronoun:
I haven’t seen much of him lately.
Many of my friends live abroad.
Decide which of the following you have or don’t have: sense of humor, money, friends, free time, future plans, ambition, patience, pair of sneakers, a suit. Write short sentences in your notebook using the words much, many and other structures from this Grammar Reference Unit, e.g. I don’t have much money but I have a lot of friends.