as far as I know
Por lo que yo sé, está muy lejos.
As far as I know, it's very far away.
Por lo que yo sé, él nunca ha llegado a tiempo.
As far as I know, he has never been on time.
Por lo que yo sé, no hubo problemas en el primer semestre.
As far as I know, there were no problems in the first semester.
La gente de Rubricum nunca ha oído hablar de Owensport, por lo que yo sé.
As far as I know, the people of Rubricum have never heard of Owensport.
Por lo que yo sé, Tom sigue casado.
As far as I know, Tom is still married.
Por lo que yo sé, él no va a venir.
As far as I know, he's not coming.