Question

нужно поставить предложение в косвенную речь, в прошедшее, настоящие и будущее время:
they thought that some kind of uniform would help to stop it  

Answer 1

They think that some kind of uniform will help to stop it ( будущее)
They thought that some kind of uniform helped/ had helped to stop it( прошедшее)
They think that some kind of uniform help to stop it( настоящее)