No+Saber with Subjunctive

Question

I am sooooo confused on this one.

Can anyone explain it to me? All the examples I find on the internet use no+saber with indicative. My teacher lumps it in with creer, etc, (positive=indicative, neg= subj)

ex: No sé si voy a la fiesta. (I don't know if I'm going to the party). O vaya a la fiesta?

Lazarus, someone else, help!!!

Answer 1

When we use 1st person with si we must use indicative as per grammar rules, ie: No sé si voy a la fiesta.

With 2nd and 3rd persons with si we use subjunctive, ie: No sé si (ella) vaya a la fiesta.

This however is a function of si usage and not no saber, ie: Si voy a la fiesta, te aviso.... Si vayas a la fiesta, avísame.

Thanks, but can you/others give more examples of no+saber and using subj or not. For no+creer, always subj, but saber is different. Trying to figure out why and more examples would be greatly appreciated! - joshuahorwitz223, Sep 27, 2013

Si vayas a la fiesta???????????????????? Is that a typo? Because if it isn't, that is totally wrong. - chileno, Sep 28, 2013

Answer 2

This lesson might help you. Arrow down to the heading 'When to break the rules'.

Really nice, thank you! :) - Manity, Sep 27, 2013

Yes, good stuff. Thanks! - rogspax, Sep 27, 2013

Thanks guys :) - Kiwi-Girl, Sep 28, 2013

Answer 3

To me, both are correct.

No sé si voy a la fiesta.

No sé si vaya a la fiesta.

I guess, the one in subjunctive expresses even more uncertainty. I don't know, but both are widely used.

Ungrammatical? I don't know either.

Hey, I don't know you, and that's that. ok?

lol (if I don't laugh, who will?)

Answer 4

You are the subject of both clauses so my guess is no subjunctive. But it is just a guess.

Answer 5

Interesting, I´ve never learned any rules specific to Saber about requiring subjunctive.

But in this case you have not one, but two indicators that should push you to learn towards the indicative.

1) Si. After ¨si¨ you will most often use the indicative.

2) Both clauses are about ¨You¨ so there is no change in speaker, and thus no resulting ¨grammatical doubt¨ and thus no subjunctive.

Yes, natives will come up with scenarios with valid and-or common exceptions, but as a learner, those two rules together should push you to assume indicative.

It´s tricky stuff for us for sure.

Que tengas suerte en tus estudios.

Si viniera hoy a mi casa, tú vendrías? = If I came to my house, would you come over? What then? ;) heck that first "si" - chileno, Sep 28, 2013