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How do we make a statement in which several pieces of evidence have been presented to prove a certain point of our argument?
I know we can say "based on THE evidence", or "based on THESE pieces of evidence", but I wonder if we can say "based on THESE evidence" ??
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SeraphinHow do we make a statement in which several pieces of evidence have been presented to prove a certain point of our argument?

I know we can say "based on THE evidence", or "based on THESE pieces of evidence", but I wonder if we can say "based on THESE evidence" ??

No. Choose from "the evidence," "this evidence," "these pieces of evidence," or "these exhibits," if the "pieces of evidence" are physical items that have been presented to the Court as "exhibit A" and soon.
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Evidence is uncountable. That's why you have to use 'piece'

Water is uncountable. That's why you should say a glass/cup, etc of water.