EE|---------------------||
BE|---------------------||
|-4-4-7-4-6-6-6/7\6/7-
EE|---------------------||
BE|---------------------||
E|---------------------|

Verse
E|-7-7-------|
B|-8-8-------|
G|-----6h7p6-|
D|-----------|
A|-----------|
E|-----------|

seems to me that for the verse one guitar is playing the higher part above,
and a second guitar is playing a variation of the intro riff which I think
sounds like what I've put below.

EE|---------------------|--|
BE|---------------------|--|
G|-4-4-7-4-------6-6-7-6-|
D|---------7-7-7---------|
AE|---------------------|--|
EE|---------------------|--|

Chorus  (strum out the chords)
E|----3------------------5---------------3-----------------5--|
B|----3------------------5---------------3-----------------5--|
G|----4------------------6---------------4-----------------6--|
D|----5------------------7---------------5-----------------7--|
A|----5------------------7---------------5-----------------7--|
EE|---------------------|---------------------------------------|
 Goodbye, don't say goodbye, I'd rather die, than say goodbye

Break
EE|---------------------||
BE|---------------------||
|-4-4-7-4-6-6-6/7\6/7-
EE|---------------------||
BE|---------------------||
E|---------------------|

Verse
E|-7-7-------|
B|-8-8-------|
G|-----6h7p6-|
D|-----------|
A|-----------|
E|-----------|

EE|---------------------|--|
BE|---------------------|--|
G|-4-4-7-4-------6-6-7-6-|
D|---------7-7-7---------|
AE|---------------------|--|
EE|---------------------|--|

Chorus
E|----3------------------5---------------3-----------------5--|
B|----3------------------5---------------3-----------------5--|
G|----4------------------6---------------4-----------------6--|
D|----5------------------7---------------5-----------------7--|
A|----5------------------7---------------5-----------------7--|
EE|---------------------|---------------------------------------|
 Goodbye, don't say goodbye, I'd rather die, than say goodbye

Outro
E|------|
B|------|
G|-9--7-|
D|-9--7-|
A|-7--5-|
E|------|

then one guitar does these in like a ska kind of way

|-x-3-x-3-x-3-x-3-x-3-
|-x-3-x-3-x-3-x-3-x-3-
|-x-4-x-4-x-4-x-4-x-4-
|-x-5-x-5-x-5-x-5-x-5-
|-x-5-x-5-x-5-x-5-x-5-
E|---------------------|