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I don't know in spanish


What is the correct way to say "I don't know" in spanish?

Yo no sé o No lo sé

updated JUL 16, 2010
posted by 009ee30f

3 Answers


Your question:.How do you say,I don't know in Spanish?

= No sé

Sé comes the verb saber = to know a fact There are two verbs in Spanish meaning to know the other verb isConocer which means to know a person or a place

You seldom need to use personal pronouns as the verbs are already conjugated for each person eg sé can only be for 1st person yo = I, sabes = tu* = you (familiar) etc...

I know it

= Lo sé ( Can also be translated as la if noun it is replacing as drect object is feminine eg la casa)

I don't know **it

= No lo

I hope that this helps grin

updated JUL 9, 2010
edited by FELIZ77
posted by FELIZ77

I would use "no lo sé" referring to a specific fact or something that was recently brought up in conversation. Such as:

"¿Sabes qué tiempo hará mañana?" "Do you know what the weather will be tomorrow?"

"Lo siento, no lo sé."

It's not wrong to say no sé there. I think it's just more common in that type of situation to include lo.

updated NOV 28, 2011
edited by socceryo3
posted by socceryo3

No sé.

You don't need the 'yo' because 'sé' can only mean (I) and no lo sé means I don't know it. smile

updated JUL 16, 2010
posted by Kiwi-Girl
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