Yo conosco a sus parientes or yo conosco a sus padres.
padres
Los padres
Mis abuelos maternos
bisabuelos
You say, "padres." It is, in fact, the plural of "father," however, it is understood in Spanish as parents: Mom and Dad. My parents = mis padres.
This is how u say it in spanish: que quieres saber?
People know Spanish by learning it. Either their parents teach them, they learn in school, or they're born in a Spanish-speaking country.
Translation: Sabes español?
¿Sábes qué? = Do you know what?
¿Me conoces?
Translation: Mis padres son de...
Translation: ayudar tus padres