......... why do we keep on with the same format, when it constantly proves failure? (justarsenal.com)
«By way of contrast, the European Union, despite the undoubted idealism of its founders and the good intentions of so many leaders, has proved a failure on so many fronts. (totalpolitics.com)
In describing the nature and extent of the employer's burden of proving a failure to mitigate Chief Justice Laskin approved the following statement: (employmentlaw101.ca)