well technically there is no bass to this song!!! but i have made up the bass line as it 
something to the song is you play the first note of each chord!!!
it is just the same as the guitar really, but only the first note of each chord!!!
or you could fill in at the same time as the guitar, yet it wouldnt sound quite right!!!

Intro
|-------------|
|-------------|
|-4~-------0~-|
|----0~-2~----|x2

Verse
|-------------|
|-------------|
|-4~-------0~-|
|----0~-2~----|x4

Chorus
|-------------|-------------------|
|-------------|-------------------|
|-7~-0~-7~-0~-|-4~-2~-0~-4~-2~-0~-|
|-------------|-------------------|

Intro x2
Verse x4
Chorus pt.1 & pt.2
Solo/Chorus pt.1 & pt.2
Chorus pt.1 x2
Chorus pt.2 x2
Intro
End on: |----------|
        |----------|
        |-4~----0~-|
        |----0~----|