1. COUNTABLE AND UNCOUNTABLE NOUNS (count and mass nouns)
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2. COUNTABLE AND UNCOUNTABLE NOUNS
They refer to things that can be counted:
UNCOUNTABLE NOUNS
They refer to immaterial concepts: life, love,...
They refer to stuff or liquid that cannot be counted: water, sugar, salt, ...
A banana
A cherry
bread
jam
icecream
A Christmas tree

3. COUNTABLE AND UNCOUNTABLE NOUNS
COUNTABLE They can be singular or plural an apple some apples
UNCOUNTABLE They are always singular coffee milk money pasta

4. COUNTABLE AND UNCOUNTABLE NOUNS
Before them you can use:
A /an a house
The the table Numbers two children Some /any (when they
are plural only)
There are some apples on the table
UNCOUNTABLE
Before them you can use:
Some/any
There is some water in the glass
There isn't any cheese on the table
But you can't use: a /an or numbers before them.

5. Quantifiers COUNTABLE Many Few /a few How many UNCOUNTABLE Much
There are many children in the park
Few /a few
There are few apples (not enough).
There are a few apples (enough).
How many
How many apples do you want?
UNCOUNTABLE
Much
There isn't much sugar in my coffee.
Little / a little
They know little English (not enough to manage)
They know a little English (enough to manage)
How much
How much money do you need?

6. How to “count” uncountable nouns: the use of partitives
Uncountable nouns can be quantified using some expressions called partitives. We use partitives when we refer to a part of a whole. There are many different partitives. Here are some examples:
A glass of water
A bottle of whisky
A tin of soup
A piece of cheese
A cup of coffee
A carton of milk
A jar of jam
A tube of toothpaste
A bag of crisps
An item of news
A loaf of bread
A can of coke
A bar of soap
We can use numbers before the partitives: two cups of coffee, ten bottles of whisky, ...