all I know
I told him everything I know.
I told them everything I know.
Te he dicho todo lo que sé de Alemania.
I've told you everything I know about Germany.
Ya le he dicho todo lo que sé.
I've already told you everything I know.
I'll tell you everything I know.
Todo lo que sé de su hijo es lo que dice la prensa.
All I know about her son is what the press says.
— Contratiempo (2017)
This is all I know about him.
Todo lo que sé, es que es una gran fiesta soviética.
All I know is that it's a big Soviet celebration.
— Quemado por el sol (1994)
Ya te dije todo lo que sé al respecto.
I already told you everything I know about it.