Wonderscape
Forming and Using Plural Nouns: Regular and Irregular Plurals
This video provides a comprehensive lesson on plural nouns. It explains the different types of regular plural nouns and how to form them by adding -s, -es, or -ies to the end of the singular noun. It also covers irregular plural nouns...
Khan Academy
Khan Academy: Irregular Plural Nouns F to Ves
The plural of 'dog' is 'dogs', but what is the plural of 'leaf'? Khan Academy's resident grammarian explains.