Determiners always come first in the noun phrase. Determiners are required with singular nouns. To speak about a singular noun generally, use an indefinite article (a or an). To speak about a plural noun generally, do not use a determiner.
Where do we use determiners?
Articles are the most basic determiners to specify what you're discussing. They come in two kinds: the definite article (“the”) and the indefinite article (“a” or “an”). The definite article – “the” – is used when we refer to something specific.
Where do you place determiners in a sentence?
Where do determiners go? Determiners come first in noun phrases, before adjectives and noun modifiers.