English grammar: Countable and uncountable nouns

What this grammar point covers

Countable nouns are things you can count (one apple, two apples). Uncountable nouns are things you cannot count (milk, water, rice). This is important for using correct words like a, an, some, or many in English.

When to use it

Use this grammar to talk about quantities, food, drinks, things you can or cannot count, and when asking or answering questions about 'how many' or 'how much'.

Key forms

• a/an + singular countable noun (a book, an egg)
• some + plural countable noun (some books)
• some + uncountable noun (some milk)
• many + plural countable noun (many apples)
• much + uncountable noun (much water)

Examples

Tips

• Do not use 'a' or 'an' with uncountable nouns (not 'a milk').
• Use 'many' with countable nouns and 'much' with uncountable nouns.
• Some nouns can be both countable and uncountable, but the meaning changes.

Exceptions and edge cases

• Some nouns can be both countable and uncountable (e.g., 'chicken' as an animal or as food).