When a noun ends in a consonant and the letter y, the plural form is made by changing the y to ies.
When a noun ends in a vowel and the letter y, the plural form is made by adding s.
When a nouns ends in a consonant before an o, the plural is formed by adding es.
It may seem hard to learn English because there are times when the rules do not work. For example, these nouns that end in o only need an s to make them plural.
Most nouns that end in o need just an s to make them plural.
Nouns that end in f or fe can be changed to plural form by changing the f to ves.
Again, sometimes the rules do not work.
There are also irregular nouns. These nouns don't seem to follow any of the rules.
That is a lot to remember when you learn to read English! Practice your skills by playing these games:
Now, watch this short video about nouns:
Click here for a list of irregular nouns:
Click here for worksheets to print: