These distributive words are normally used with singular nouns, and are placed before the noun.

Each, either and neither can be used with plural nouns but must be followed by ' of ' :

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

Every is a way of seeing a group as a series of members:

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

Either and Neither are concerned with distribution between two things - either is positive, neither is negative: