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