Grimsby has been regelated the most.
Yes it has.
Liverpool have not been relegated since the beginning of the Premiership.
As of 2013 season: Wigan Athletic Arsenal were relegated in 1913
Wigan & Hull (from the top flight).
No One. Blackburn, Man United, Aresnal & Chelsea Have Won The Premiership And They Have Never Been Relegated That's not an answer, and Blackburn have been relegated
Yes, way back in 1912-13 season when they were relegated to the then Fourth Division (what is now League Two). They have never been relegated since then.
Arsenal FC have never been relegated from the Premier League but were relegated to the then Fourth Division (modern League Two) in 1913.
The only E.P.L team never ever to be relegated is Arsenal. WRONG. Arsenal were relegated in 1913 then promoted back to the top flight in 1919 no woolwich arsenal were relegated in 1913 then during the ww1 football was suspened officially until war was over in which time they changed to arsenal f.c and came back into top flight English football 1919-1920 season and since then have never been relegated from top flight football.