Nouns
Nouns refer to a person, place, thing, event, substance or quality. {see Nouns, A1 Level}
Invariant Nouns are nouns which have the same singular and plural form.
The most common Invariant Plural Nouns are: Scissors, series, goggles, jeans, trousers, etc.
Adding “a pair of” before the noun make these nouns singular. Because we start to refer them as one single entity.
- A pair of scissors is on the office desk. (singular)
Scissors are dangerous for babies. (plural) - This advertisement is about a new series. (singular)
New TV series about famous writers are going to start. (plural) - Your old pair of goggles is used in the musical. (singular)
These goggles cost a fortune! (plural)
Invariant Nouns don’t follow the general plural formation rule, they are the same in singular and plural, in that case we don’t add -s at the end of the noun (if they have a singular form).
When it has both singular and plural the article is adapted to it.
Invariant Nouns are nouns which have the same singular and plural forms, we need to use the correct article to distinguish between them. There are many Invariant Nouns but the most common ones are: Scissors, series, goggles, jeans, trousers, etc.
For example:
— “I bought a pair of jeans.” = Singular.
— “I bought two pairs of jeans.” = Plural.
NOTE: Invariant Nouns don’t follow the general plural formation rule.
Let’s revise this content within the [Form] section. Take a look at the [Example] section that shows its use within a context.