The ABA,which indirectly sets the rules for the purpose of regulating lawyers您的意思是说不能直接去掉，要换成of的形式才可以，是吗？嗯。这是个从句，需要引导，或者换成to，跟set..to..行程词组模式是这样的吗？【sets the rules to regulate lawyers】嗯是的