Determiner (noun): a word like the, an, this or some that comes at the beginning of a noun phrase

These pages explain the grammar and usage of determiners, with example sentences.

What is a Determiner?

Main Determiners

These are the main determiners. There can be only ONE main determiner in a noun phrase (for more about this, see order of determiners):

a/an, the

Demonstrative Determiners
this/that, these/those

Possessive Determiners
my, your, his, her, its, our, their

Pre-Determiners and Post-Determiners

Pre-determiners come before main determiners and post-determiners come after main determiners. (For how many and where, see order of determiners.)

all, every, most, many, much, some, few, little, any, no...

cardinal and ordinal numbers
double/twice/three times...

Interrogative Determiners
whose, what, which

More about Determiners

ZERO Article
When we don't need a determiner

Order of Determiners
Determiners go at the front of a noun phrase, but which determiners go in what order?

Determiners versus Pronouns
How not to confuse determiners with pronouns

Determiners Quiz
How well do you really understand determiners?

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