Determiners are small grammar words used before nouns and tell us more about them.
They are called determiners as they determine things such as which noun, whose noun and how many nouns.
They ...
... are only ever used before nouns:
Would you like some coffee?
Do you have any plans this evening?
All children should learn how to swim
... are sometimes used with other determiners such as few, other and couple of:
I normally mow the lawn every few weeks
Apart from us there were no other people on the train
He visits his mother every couple of weeks
... must never contradict each other:
Can I have another one drink?
Can I have another one drink?
- generally follow the same rules as pronouns when using of apart from a few exceptions, such as both, e.g.
I bought both of the jumpers I liked as I couldn't decide between them.