Great song, It would take ages to write the timing so listen to the song and figure it 
I'm pretty sure this tab is exactly how Paul used to play it, enjoy.

Tuning: standard


Intro/verse
G|--9--9--9---44-4-4-/-9--9--9---44-4-4------------------|
D|--10-10-10--55-5-5-/-10-10-10--55-5-5------------------|
A|-------------------------------------------------------|
E|-------------------------------------------------------|

G|--5-5-5--44-4-4--5-5-5--7--7---7--7-/--------------------|
D|--7-7-7--55-5-5--7-7-7—-9—-9---9--9-/--------------------|
A|---------------------------------------------------------|
E|---------------------------------------------------------|

Pre chorus
G|-------------------------------------------------------|
D|-------------------------------------------------------|
A|-------------------------------------------------------|
E|-11111111-3~-------------------------------------------|

chorus
G|-------------------------------------------------------|
D|----------------------5--5---5--5----------------------|
A|--3-3-3--------3-3-3-----------------------------------|
E|--------3--3-3-----------------------------------------|

G|---------------------------------------------------------|
D|---------------------------------------------------------|
A|---------------------------------------------------------|
E|--5-5-5--7--7-7--5-5-5--0-0-0----11111111-3~-------------|

play verse again
then pre chorus
chorus

Bridge
G|--------------------------------------------------------------|
D|--------------------------------------------------------------|
A|-3-3-3--22-2-2--------------------------------3-3-3--33-3-3---|
E|----------------5-5-5--55-5-5--1-1-1--33-3-3------------------|

G|-------------------------------------------------------|
D|-------------------------------------------------------|
A|-------1010-10-10--------------------------------------|
E|-8-8-8-------------5-5-5-55-5-5--1-1-1--3-33-3-3-------|

Pause, then

G|-------------------------------------------------------------------------|
D|-------------------------------------------------------------------------|
A|-3333333-22222222-333333333-22222222-------------------------------------|
E|------------------------------------55555555-77777777-55555555-0000000---|

G|-------------------------------------------------------|
D|-------------------------------------------------------|
A|-------------------------------------------------------|
E|-1111111111-3~-----------------------------------------|

chorus

Outro
G|--------------------------------------------------------------|
D|--------------------------------------------------------------|
A|-3-3-3--22-2-2--------------------------------3-3-3--33-3-3---|
E|----------------5-5-5--55-5-5--1-1-1--33-3-3------------------|

G|-------------------------------------------------------|
D|-------------------------------------------------------|
A|-------1010-10-10--------------------------------------|
E|-8-8-8-------------5-5-5-55-5-5--1-1-1--3-33-3-3-------|

G|--------------------------------------------------------------|
D|--------------------------------------------------------------|
A|-3-3-3--22-2-2--------------------------------3-3-3--33-3-3---|
E|----------------5-5-5--55-5-5--1-1-1--33-3-3------------------|