Countable Nouns
Countable nouns are nouns that can be counted and have both singular and plural forms. They refer to individual entities that can be quantified using numbers. Countable nouns can be preceded by words like "a," "an," or "the" and can be made plural by adding "-s" or "-es" at the end. Examples of countable nouns include "cat," "dog," "apple," and "book."