intro
G (hammer on to G2 [2nd fret on G string])
C2 (hammer on to C2 add 7 [the same hammer on as the G])
A minor 
C then slide up C to A Dsus


Verse 1:
G (hammer on to G2)          C2 w/ hammer also
started off grand then ended in ruins
                     Am                              C        D
thought you were the one you never knew what we were doin'
                 G w/ hammer           C2 w/hammer
you didnt know when to stop all of your games
               A                           D
and you left me here, left me without any shame

Pre-Chorus:

       E        D   G              A              C           E       D
so the truth came out you couldnt promise me the love that i was pouring 
G         A   C
out for you
             E    D  G
and when you went away
           A            C
couldn't get you out of my mind oh i
    E    D  G       A    D
was broken down for you

Chorus:
                                                        
G                    E        E7            A          amM7           C
500 days i know it wasn't the best but i won't ever forget no i won't ever 
 D
forget
[Same as first half of chorus)
500 days i know it wasn't the best but i won't ever regret no i won't ever 
          G
forget you 

(intro)

Verse 2:
SAME AS VERSE 2: ^^^^^^^^

i gotta be frank-- i can't imagine me with anyone other than you 
had me feelin like my dreams came true

you made me feel good
like no one else existed
like summer was here everyday of the year
now its just my wishful thinkin

Pre-Chorus: same as other pre-chorus ^^^^^^^

so the truth came out you promised someone else the love that i was pouring out for you
when you went away
couldn't get you out of my mind oh i
was broken down for you

(chorus)

intro

Slower: Same as Verses ^^^^^^^^^^
there is a light and it never goes out
and there is a promise and i don't mean to scream and shout
but there is a fog and it's blocking that light
gotta let you go, no use in fighting this fight

Chorus (key change to A):
A2                    F#        F#7            B          bmM7           D
500 days i know it wasn't the best but i won't ever forget no i won't ever 
 E
forget
[Same as first half of chorus)
500 days i know it wasn't the best but i won't ever regret no i won't ever 
          A2          E            A2
forget you