You can't
No, you dont see him again.
yes if you have zorak
don't know, but u never see him again.
no you cant see n again Atcually I'm pretty sure you can see him on the rondez view Ferris wheel
After he leaves from N's Castle you don't see him again, but Looker does briefly mention him as you round up the Sages later.
Probably not since you finished the main story.
after you beat him at the Pokemon league he will disaper a future event or game may make him show up again
If you mean after you find the other sages . well you cant find him ever again you will have to wait for the sequel of pokemon black and white so really you cant find N or Ghetsis ever again in your currant pokemon game
Nope, N won't show up again after you beat him in his Castle in Pokémon Black or White.
You will encounter N many times in Pokemon Black & White.
In pokemon black you can get it at N's caslte
N is a PERSON