Know is either saber or conocer. Sabermeans to know a fact or piece of information, conocer means to be familiar or acquainted with.
With saber
I know -> yo sé
You know -> tú sabes (familiar)
You/he/she knows -> Usted/él/ella sabe
They know -> Ustedes/ellas/ellos saben
We know -> nosotros sabemos
With conocer
I know -> yo conozco
You know -> tú conoces (familiar)
You/he/she knows -> Usted/él/ella conoce
They know -> Ustedes/ellas/ellos conocen
We know -> nosotros conocemos
¿Habla / hablan / hablas / habláis español?
¿Sabe / saben / sabes / sabáis español?
Verbs in black, in order: Usted, ustedes, tú, vosotros / vosotras
The verbs are saber (know something) or conocer (know someone, recognize).
conoces or sabes depending on what your asking them.
(tu) sabes (informal)
(Vd= usted) sabe (formal)
The bracketed words (tu/Vd) can be either said or omitted.
Sabes
This is how u say it in spanish: que quieres saber?
Translation: Sabes español?
¿Sábes qué? = Do you know what?
¿Me conoces?
i didn't know that you speak spanish = no sabía que hablas español.
Yeah, I do...lol did you mean, How do you say, you know lots of Spanish? If that's the case, then you say,"Sabes mucho español".
Do you know about that is: Sabes de eso
No sé.
No sé
¿Me conoces?
Te conozco
" Sabes que"