This is a strange song with a strange structure. Let see:

Strings Intro

Pre-verse, verse, post verse, Chorus

Pre-verse, verse, post verse, Chorus

Pre-verse, verse, verse,ending

Chords for verses ( G,Bm7,C2,D,G,Bm7,C2,G)

Chorus (Am,G,Am,G,Am,Em7,C,D)