Every vs. Each vs. Either vs. Any

Every, Each, either and any can be used with plural nouns but must be followed by 'of'.

Every is used when you are talking about all the items in a group together:

- Every child in the world deserves affection.
- Every room in the house was beautifully decorated.
- Every one of the students in the school can join us in the club.

It can also express different points in a series, especially with time expressions:

- Every third morning john goes jogging.
- This magazine is published every other week...

Any is used to talk about one of a number of things or people especially when it does not matter which or you are definitely not talking about a specific named person.

- If you recognize any of the people in the photograph, please let us know.
- Ask any teacher and they will tell you I'm right.
- Any of the people in the crowd could have fired the pistol.

Each is a way of seeing the members of a group as individuals:

- Each child received a present.
- Each student wrote what they liked best.
- Each of the children received a present.

Either is concerned with distribution between two things.One of the other two.

-There are two chairs here. You can take either of them.
- I can stay at either hotel, they are both good.
- Either of them is good for teaching.