You know that the general rule to
make the plural in English is adding -s, but there are cases where we
add -es. In the following webpage you can see all the cases and the
exceptions to form the plural of nouns in English.
Note: Use the dictionary everytime you need it!!
Here you have a video with the explanation of how to form the plural.
Now you can do some practise with these exercises:
Here you can listen how the plural is pronounced
listen the plural of some nouns by topics (por temas). You need Real Player program.