I want to make a comparison question, but I am not quite sure about the formula of the question?

It is correct to say : Compare between each 2 of the following? If this formula is not correct, please show me the correct one. or:It is correct to sa

It is correct to say : Compare between each 2 of the following? If this formula is not correct, please show me the correct one.

or:It is correct to say : Compare between each 2 of the following? If this formula is not correct, please show me the correct one.

or:You compare one item to another. It is somewhat difficult to speak of lists of things because comparing is only done with one concept.

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