Countable nouns can be singular or plural, as they refer to objects that can be counted individually. Numbers and articles can be used with countable nouns. Uncountable nouns refer to materials, liquids, and other objects that cannot be counted individually. They do not have a plural form and cannot be used with numbers. Examples are provided of countable nouns like "astronaut" and uncountable nouns like "water".

1. Nouns
Contable
Uncountable

2. Countable nouns
• Los sustantivos contables tienen una
forma para el singular y otra para el
plural, ya que designan objetos que
se pueden contar por unidades.
• Podemos utilizar números y
artículos (a / an) con los sustantivos
contables.

3. Countable nouns
An astronaut
Two astronauts
A mountain
Three mountains
A scientist
50 scientists
A plant
200 plants

4. Uncountable nouns
• Los sustantivos incontables
designan objetos que no se pueden
contar por unidades: materiales,
líquidos, etc…
• No tienen formas de plural y no
pueden ir acompañados de
números.

5. Uncountable nouns
Water
Food
Air
Milk
Sugar
Wine
Money

6. Space
There are ten stars and five
planets in the picture.
There’s one rocket and there
are two space shuttles. There
are three astronauts and four
aliens.

7. There’s some water on this planet.

8. There are five oceans.

9. There are animals in the oceans.

10. There is an enormous mountain.

11. There are some trees on the
mountain.

12. There is some fruit on the trees.

13. There’s a house next to the tree.

14. He’s got some water.

15. He hasn’t got any money.

16. Is he eating an apple?

17. There aren’t any sandwiches.

18. She’s buying some bread.

19. He’s carrying a book.

20. Countable Uncountable
Astronaut Air
Planet Food
Plant Life
Scientist Milk
Mountain Water
Tree Cheese
Hamburger Soup
Banana Wine