was talking
Tom estaba hablando consigo mismo.
Tom was talking to himself.
Yo estaba hablando con Andrea cuando Valentina interrumpió.
I was talking to Andrea when Valentina interrupted.
Tom vio a alguien manejando el carro del que estaba hablando Mary.
Tom saw someone driving the car Mary was talking about.
Esto es exactamente de lo que estaba hablando.
This is exactly what I was talking about.
Estaba hablando con una chica.
I was talking to a girl.
I was talking about you.
Eso es de lo que estaba hablando.
That's what I was talking about.
De esto estaba hablando, gracias por venir.
This is what I was talking about, thanks for coming.