Question

I need a little help here!
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Fill in the blanks with the present tense form of saber or conocer.

Ana ______ hablar español y francés.

Ustedes no _______ a mi amigo Daniel.

Tú jugar al tenis como un profesional.

Nosotros ______ el castillo del rey (King) Juan.

Los estudiantes _______ dónde está la biblioteca.

Answer 1

saber
----
yo sé
tú sabes
el/ella/ud. sabe
ellos/ellas/uds saben
nosotros/as sabemos

saber is "to know" as in a fact, or any "how to do" some activity

ex: tú sabes las reglas=you know the rules

Answer 2

conocer
----
yo conozco
tú conoces
el/ella/ud. conoce
ellos/ellas/uds conocen
nosotros/as conocemos

conocer is "to know" as in "to be acquainted or familiar with", as opposed to "saber" which is used for facts and how-to's

if you are referring to a song, book, or person you are familiar with you would use the word conocer to say that you "know" i.e. are familiar with it

ex: conozco esta canción = I know this song/ I am familiar with this song

note: you cannot "saber" a person (that treats a person like a fact) you you can conocer a person (to be acquainted with, know of, or have met that person)

Answer 3

Classical Castilian/Metropolitan Spanish includes an additional conjugation, in everyday use, but one that is not seen in South American Spanish. It is the plural equivalent of the singular 'tu' form and perhaps as a result you see the sequence in which the forms are listed in grammars as quite different in European textbooks:

nosotros/as sabemos
VOSOTROS/AS SABÉIS
ellos/ellas/uds saben

nosotros/as conocemos
VOSOTROS/AS CONOCÉIS
ellos/ellas/uds conocen

Also the meaning of conocer changes a little depending on the tense in which it is employed.