An ordinary 12 bar (quick change) but with a break with some different chords.
I've listened some live version from Japan, not sure if the song structure is the same on all his versions.
[VERSE 1]
E A7 E E7
I've got you on my mind, I'm feeling kind of sad and low
A7 E
Got you on my mind, feeling kind of sad and low
B7 E
I'm wondering where you are, wondering why you had to go
[VERSE 2]
E A7 E E7
Tears begin to fall every time I hear your name
A7 E
Tears begin to fall every time I hear your name
B7 E
But since you went away, nothing seems to be the same
[BREAK]
A C B E E7
No matter how I try, my heart just don't see why I can't forget you
A F# B C B7
If ever it should be, You want to come back to me. Oh lord!
[VERSE 3] (same as verse 1)
E A7 E E7
I've got you on my mind, I'm feeling kind of sad and low
A7 E
Got you on my mind, feeling kind of sad and low
B7 E
I'm wondering where you are, wondering why you had to go
[VERSE 4] (same as verse 2)
E A7 E E7
Tears begin to fall every time I hear your name
A7 E
Tears begin to fall every time I hear your name
B7 E
But since you went away, nothing seems to be the same