Determiners (come before the noun, directly refer to them, 4)

Indefinite article eg. a, an Definite article eg. the Demonstrative eg. this, that, these, those Possessive eg. my, our, your, his Note: A quantifier is just a number, a determiner comes before the noun eg. fifteen students In this case, the determiner refers to quantity (one, two, three) and (some, few, many).