Mxtabs [http://www.mxtabs.net]
Firstly the other tabs are wrong. Personally, I could not get where McCartney played it because it seemed so nice to play it starting with the open hand E ie. like the guitar. But after seeing the video I learned that was not the case.

Got a good reason...

G|------------9-7---11---7-9--|
D|----------9-----9----9------|
A|--7-10-11-------------------|
E|----------------------------|

Got a good reason... (2nd time)

G|-----------------------------|
D|--7-10-11---7------9------7--|
A|----------7---10-7---7-10----|
E|-----------------------------|

She was a day tripper... (1st and 3rd times)

G|---------9-8-11--|
D|----9-11---------|
A|--9--------------|
E|-----------------|

I took me so long to find... (1st and 3rd times)

G|-------------------------------------|
D|-----12----------------11-13---------|
A|--12-------10-9-12--11-------9-8-11--|
E|--------12---------------------------|

But I found out... (Same notes but different timing for 2nd time)

G|-----------------------------|
D|--11------7-11-7----------7--|
A|-----7-11------------7-11----|
E|------------------12---------|

Chorus (2nd time) The timing is quite different to the 1st + 3rd chorus'

G|---------9-8-11--|
D|----8-11---------|
A|--9--------------|
E|-----------------|

Bridge (difficult to show timing but basically it gets faster)

G|-------------------|
D|--9-9-9-9-9-9-9-9--|
A|-------------------|
E|-------------------|

Outro (3rd time verse riff is played)

G|------------9-7---7---7---7----|
D|----------9-----9---9---9---9--|
A|--7-10-11----------------------|
E|-------------------------------|