Singular vs. Plural
English nouns can be classified as count (singular and plural) and non-count.
The singular form is used when considering the noun as a single item (count) or entity (non-count).
The plural form is used when considering more than one of the same item. Non-count nouns do not have a plural form.
Things to be aware of: Regular plurals
Most plurals are formed by adding –s or –es to the singular noun:
In some cases, there are special spelling rules that need to be considered when forming the plural.
Some nouns take on a different form in the plural:
Non-count nouns do not have a plural form; however, some nouns can be used in both the count and non-count sense:
Third-person singular –s
Singular and non-count nouns (in the third person) require the –s form of the verb in the present tense.
Singular count nouns require an article (the, a, an) unless
Plural nouns and singular non-count nouns do not require an article in the “generic” sense:
However, they require articles (the, some) in most other cases.