A:This goes beyond my ability.( 这超出我的能力) B:This is beyongd my ability.(这超出了我的能力) The key lies in le (了） After V. or adj.(用在动词或形容之词之后), le means some actions have been done or changes have happened（了，表明动作或变化已经完成）. Obviously, they are so similar. Someone just considers A as B? Is it ok?