Y si bien oía hablar a su compañera de viaje, apenas si la escuchaba.

Question

Two "si" subordinate clauses without main clause?

ABC se aferraba a los brazos del asiento. Y si bien oía hablar a su compañera de viaje, apenas si la escuchaba.

Answer 1

I don´t think either of these is actually a "si" clause (from the dictionary)

si bien --> even though

apenas si --> scarcely, barely

So the sentence would be "Even though she heard her travelling companion talking, she barely listened to her."

Answer 2

It would be really helpful to have the surrounding sentences.

Thanks. I've added it. - SlowFoxtrot, DIC 27, 2009