Copy-editing consists in the process of checking, cleaning and improvement of the text, so that it is clear and easily comprehensible, it is precise (expresses its ideas correctly), coherent (in regard to discourse development) and consistent (editorial decisions are applied

Over-correcting means modifying phrases, sentences or paragraphs that are already correct from a grammatical and stylistic point of view. Of course that the copy editor, thanks to his professional specialization and vast experience, will easily find other alternatives, sometimes more