Nouns are also often preceded by noun determiners, demonstratives, and possessive adjectives that indicate the number of the noun. Noun determiners include definite and indefinite articles and quantifiers.
| Definite Articles (used for both singular and plural nouns) | Indefinite Articles (used with singular nouns that are not specific) |
|---|---|
| the woman | a rock |
| the sky | an apple |
| any taxi | |
| that question | |
| those apples | |
| this paper | |
| some apple | |
| whatever taxi | |
| whichever taxi |
Many determiners also express quantity. Choosing the correct determiner can also be done by identifying if the noun it refers to is a count or a mass noun. Count nouns are nouns that can be quantified or counted with a number. Mass nouns are uncountable by a number. Mass nouns are quantified by a word that signifies amount.
| Count Nouns | Mass Nouns |
|---|---|
| peso | money |
| glass | water |
| students | happiness |