Conocer means to know
or to be familiar with someone,
something, or somewhere. It can only be followed by the a direct object,
never by an infinitive or a subordinate clause. Remember that if the direct
object is a person, the
a must be used.
Conozco a tu padre.
I know your father.
No conocen la obra de Cervantes.
They're not familiar with Cervantes' work.
¿Ud. conoce Barcelona?
Are you familiar with Barcelona?
In the pretérito,
means to meet someone for the first