know each other
Tom y Mary no se conocen.
Tom and Mary don't know each other.
Tom tiene dos novias que no se conocen la una a la otra.
Tom has two girlfriends who don't know each other.
Vaya, parece que se conocen bien.
Wow, it looks like you know each other well.
— Sonidos vecinos (2012)
Tom y Mary se conocen muy bien.
Tom and Mary know each other very well.
Hay mucha confianza entre ellos porque se conocen desde la infancia.
There is a lot of trust between them because they have known each other since childhood.
Las dos mujeres se conocen la una a la otra.
The two women know each other.
Tom y Mary apenas se conocen.
Tom and Mary barely know each other.