Do you mean the passive one? I don't think it is rare to say 'I have been learning English for years', but I am not a teacher.The present perfect progressive/continuous form is rarely used, but it is not incorrect.
I think it is possible if 'done' is replaced with 'published', but I am not a teacher."It has been being done for one year".
I think 'the decision' after the comma refers to those about whether to approve the claims, but I am not a teacher.I don't see how the part after the comma fits in with the first part.
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