He may indeed know something which his teacher does not know.
En efecto, bien puede saber algo que su propio maestro no sepa.
Of course you won't know something that happened so long ago...
Claro, cómo van a saber algo que ocurrió hace tanto tiempo...
She's too quiet today, and I know something is up with her.
Está demasiado callada hoy, y sé que algo pasa con ella.
If they start to move, I'll know something's up.
If you never speak your mind, nobody will know something is bothering you.
Si nunca dices lo que piensas, nadie sabrá que algo te está molestando.
I refuse to deal in whispers; if I know something, I confirm it.
Me niego a correr rumores; si sé algo, primero lo confirmo.
His telegraphed look of concern let me know something was wrong.
I always remind myself to ask a question when I don't know something.
Siempre me recuerdo a mí mismo que debo preguntar cuando no sé algo.
You've either committed a crime or know something about one.
O bien ha cometido un crimen o sabe algo acerca de uno.
I know something about how wars start and who wins them.
Sé algo acerca de cómo comienzan las guerras y quién las gana.
I happen to know something pretty f-foul about him, actually.
Resulta que, en realidad, sé algo bastante repugnante sobre él.
We know something brought down the plane, not mechanical failure.
See, I know something about tonight that you don't know.
Mira, yo sé algo acerca de esta noche que usted no sabe.