Im pretty sure this is right.
listen to song for how to strum strumming some parts you strum the note once and 
others twice but these are the chords:

intro/verse (strum each twice): G D Em7 Cadd9

pre-chorus(strum each twice): Em7 Bm Cadd9 D

chorus (each once): G D Em7 Cadd9 G D Em7 Cadd9 G D Em7 Cadd9 D

interlude (each once): G D Em7 Cadd9 D

verse

pre-chorus

bridge: G D Cadd9 D G D Cadd9 D

chorusx2

outro(twice): G D Em7 Cadd9 G D Em7 Cadd9