It's in like a 2/4 time like 1,2,1,2. The Pre chorus and the Chorus and the 
interlude thing is like 1 and a 2 and a 1 and a 2 and a. If that makes sense.

Verse/Intro
|--------------|--------------|X4
|--------------|--------2-----|
|-----2--------|------2---2---|
|---2---2------|----0-------0-|
|-0------------|--0-----------|
|--------------|--------------|

Pre-Chorus
|-0--0000------|-3--3333------|X2
|-3--3333------|-3--3333------|
|-2--2222------|-2--2222------|
|--------------|--------------|
|--------------|--------------|
|--------------|--------------|


Chorus

C  CCCC    G  GGGG (X2) (Same pattern as Pre-Chorus)

Interlude/Bridge:O

E  EEEE    A  AAAA (X2) (Same pattern as Pre-Chorus)


HOW TO PLAY!!!

Intro/Verse
Pre-chorus
Chorus
Intro/Verse
Pre-chorus
Chorus
Interlude/Bridge
Verse
End with a slow sweep of an A