Determiners : English Grammar

Determiners:

Determiners are used to identify things in further detail. To take the dictionary definition, they are modifying words that determine the kind of reference a noun or noun group has.

Determiners are different from pronouns in that a determiner is always followed by a noun. Personal pronouns ( I , you , he , etc.) and possessive pronouns (mine, yours, his, etc.) don't act as determiners.

They are used in front of nouns to indicate whether you are referring to something specific or something of a particular type.

The definite and indefinite articles a/an/the are all determiners.

You use a specific determiner when people know exactly which thing(s) or person/people you are talking about.

Determiners include:

the articles : a / an / the demonstratives : this / that / these / those possessives (aka possessive adjectives): my / your /his / her / its / our / your / their

For example:-

"The dog barked at the man."
"These apples are ripe."
"Their flight was late."
"Have you seen my shoes?"

You use general determiners to talk about how much stuff or how many people or things you are talking about.

More general determiners are quantifiers:

a few a little  all  another  any both  each  either  enough  every few  fewer  less  little  many more  most  much neither  no  other  several  some

For example:

"Have you got any English magazines I could borrow?"
"There is enough food to feed everyone." 
"I don't teach every day."

Numbers act as determiners too, they show how many things or people there are: 1, 2, 3...

For example:

"I teach online for 3 days a week."

Either and Neither

Either and neither are used in sentences concerning a possible choice between two items.

Either can mean one or the other (of two) or each of two.

For example:

I've got tea and coffee, so you can have either. (One or the other)
The room has a door at either end. (Both)

Neither means not the first one and not the second one.

For example:

Neither of the students were listening.