Standard tunning 
Intro repeat for the pre-Chorus part 

|------------------------------------------------------------------------------| 
|------------------------------------------------------------------------------| 
|3---------6-------------------------------------------------------------------| 
|3---------6--------3----------------------------------------------------------| 
|1---------4--------3----------------------------------------------------------| 
|-------------------1----------------------------------------------------------| 

Then the Chorus part 
|-----------------------------------------------------------------------------------------| 
|-----------------------------------------------------------------------------------------| 
|6-6-6-6-6-6-6-6\8-8-8-8-8-8-8-8\10-10-10-10-10-10-10-10\12-12-12-12-12-12-12-12\13/12/10-| 
|6-6-6-6-6-6-6-6\8-8-8-8-8-8-8-8\10-10-10-10-10-10-10-10\12-12-12-12-12-12-12-12\13/12/10-| 
|4-4-4-4-4-4-4-4\6-6-6-6-6-6-6-6\8-8-8-8-8-8-8-8-8-8-8-8\10-10-10-10-10-10-10-10\11/10/8--| 
|-----------------------------------------------------------------------------------------| 

something like that guys