no conozco a ninguno de

i don't know any of

→ no
phrase Uncommon #21,121
i don't know any of Used before a group of people or a pronoun to say that you do not know any of them. Use «ninguna» instead of «ninguno» with feminine nouns.
SP: No conozco a ninguno de tus vecinos.
EN: I don't know any of your neighbors.

No conozco a ninguno de los tres hombres.

I don't know any of the three men.

No conozco a ninguno de esos chicos.

I don’t know any of those guys.

No conozco a ninguno de sus estudiantes.

I don't know any of his students.

No conozco a ninguno de los dos.

I don't know either of them.

No conozco a ninguno de vosotros.

I don't know any of you.

No conozco a ninguno de ellos.

I don't know any of them.

No conozco a ninguno de los tres.

I don't know any of the three.

No conozco a ninguno de esos tres.

I don't know any of those three.

No conozco a ninguno de sus hermanos.

I don't know any of his siblings.