no sé porqué

I don't know why

→ no
phrase Rare #42,437
I don't know why Used to say you don’t know the reason for something. In standard Spanish, this is usually written as no sé por qué.
SP: No sé porqué llegaste tan tarde.
EN: I don't know why you arrived so late.

Pero no sé, no sé porqué viene así, no sé, es una cosa tuya.

But I don't know, I don't know why it comes like this, I don't know, it's something you do.

— El secreto de sus ojos (2009)

No sé porqué acepté.

I don't know why I accepted.

— Fallen angels (Ángeles caídos) (1995)

No sé porqué lo ponen siempre tan arriba.

I don't know why they always put it so high up.

— Perdición (1944)

No sé porqué Tom no quiere hacer eso.

I don't know why Tom doesn't want to do that.

No sé porqué ocurrió.

I don't know why it happened.

— El síndrome asténico (1989)