This is my first tab. Hope it's correct! Enjoy.

RHYTHM Guitar

Intro
e|-------------xxx-------------x--|
B|-------------22x-------------2--|
G|-44x-----77x-22x-44x-----77x-2--|
D|-44x-55x-77x-22x-44x-55x-77x-2--|
A|-22x-55x-55x-44x-22x-55x-55x-4--|
E|-----33x-----xxx-----33x-----x--|

Only the piano and acoustic throughout the first verse

Pre-Chorus
   G (320003@1)   A (x02220@1)   G (320003@1)       Ae|-3-----0-----3---------0-| (x02220@1)B|-3-----2-----3---------2-|
G|-0-----2-----0---------2-|
D|-0-----2-----0---------2-|
A|-2-----0-----2---------0-|
E|-3-----x-----3---------x-|
  All  thought I thought be  (The words on which the chords are played)

Chorus

e|---------------------|
B|---------------------|
G|------7777-----------|
D|-5555-7777-777777777-| x2
A|-5555-5555-777777777-|
E|-3333------555555555-|


e|----------------------------------------|
B|----------------------------------------|
G|------7777------4-----------------------|
D|-5555-7777-7-7--4--2222-4444-555--------|
A|-5555-5555-7-7--2--2222-4444-555--------|
E|-3333------5-5-----0000-2222-333--------|

Intro 
Verse 2
(The rhythm just frames the chords here)
                 Bm (x24432@1)                           GYou've (320003@1)got your dumb friends, I know what they say
                     D (xx0232@1)                  AThey (x02220@1)tell you I'm difficult, but so are they
                Bm (x24432@1)                       GBut (320003@1)they don't know me, do they even know you
                    D (xx0232@1)                                 AAll (x02220@1)the things you hide from me, all the shit that you do

Pre-Chorus

Chorus

Bridge

e|----------------------------------------|
B|----------------------------------------|
G|----------------------------------------|
D|-77777777-55555555-77777777-55555555----|
A|-77777777-55555555-77777777-55555555----|
E|-55555555-33333333-55555555-33333333----|

e|----------------------------------------|
B|----------------------------------------|
G|----------44444444----------------------|
D|-77777777-44444444-55555555-77777777----|
A|-77777777-22222222-55555555-77777777----|
E|-55555555----------33333333-55555555----|

Acoustic plays G D A

Chorus 2

e|---------------------|
B|---------------------|
G|------7777-----------|
D|-5555-7777-777777777-| 
A|-5555-5555-777777777-|
E|-3333------555555555-|
 

e|----------------------------------------|
B|----------------------------------------|
G|------7777------4-----------------------|
D|-5555-7777-7-7--4--2222-4444-555--------|
A|-5555-5555-7-7--2--2222-4444-555--------|
E|-3333------5-5-----0000-2222-333--------|

Chorus

Outro

e|-------------xxx-|
B|-------------22x-|
G|-44x-----77x-22x-|
D|-44x-55x-77x-22x-| x2
A|-22x-55x-55x-44x-|
E|-----33x-----xxx-|

e|-------------x---|
B|-------------2---|
G|-44x-----77x-2---|
D|-44x-55x-77x-2?5-|
A|-22x-55x-55x-4?5-|
E|-----33x-----x?3-|


LEAD Guitar
Intro 1
e|---------------|
B|-7-8-7-8-------|
G|---------9-9-7-|
D|---------------| x2
A|---------------|
E|---------------|

Intro 2 (With Rhythm Guitar)
e|-----------------------|
B|-----------------------|
G|-11-9-11---------------|
D|---------12-12-11-11-9-|
A|-----------------------|
E|-----------------------|
(This part is played while Avril sings 'Oh' 'Oh')
Verse has only acoustic and piano

Pre-Chorus
e|---------0-------------0-----|
B|-----3-----3-------0-----0---|
G|---2---2-----2---2---2-----2-|
D|-----------------------------| x2
A|---------------0-------------|
E|-3---------------------------|

Chorus

e|-xxxx-xxxx-xxxx-x--x?-x x--|
B|-8888-7777-5555-10-12-1414-|
G|-xxxx-xxxx-xxxx-x--x?-x x--| x2
D|-5555-4444-2222-7--9--1111-|
A|-xxxx-xxxx-xxxx-x--x?-x x--|
E|-xxxx-xxxx-xxxx-x--x?-x x--|

e|-xxxx-xxxx-xxxx---x x x x---xxx-xxx-xxx-|
B|-8888-7777-5555---12121212?-xxx-xxx-xxx-|
G|-xxxx-xxxx-xxxx---x x x x---999-777-888-| 
D|-5555-4444-2222---9 9 9 9---xxx-xxx-xxx-|
A|-xxxx-xxxx-xxxx---x x x x---777-444-555-|
E|-xxxx-xxxx-xxxx---x x x x---xxx-xxx-xxx-|

Intro 2
The lead guitar is silent during the verse
Pre-Chorus
Chorus
Bridge
e|-5-------5-------5-------5----------|
B|---5---5---5---5---5---5---5---5----|
G|-----7-------7-------7-------7------|
D|------------------------------------| x5
A|------------------------------------|
E|------------------------------------|

e|-7-------7-------7-------7----------|
B|---5---5---5---5---5---5---5---5----|
G|-----7-------7-------7-------7------|
D|------------------------------------| x 1
A|------------------------------------|
E|------------------------------------|

e|-5-------5-------5-------5----------|
B|---5---5---5---5---5---5---5---5----|
G|-----7-------7-------7-------7------|
D|------------------------------------| x2
A|------------------------------------|
E|------------------------------------|

Acoustic plays G D A

Chorus 2
e|-xxxx-xxxx-xxxx-x--x?-x x--|
B|-8888-7777-5555-10-12-1414-|
G|-xxxx-xxxx-xxxx-x--x?-x x--| 
D|-5555-4444-2222-7--9--1111-|
A|-xxxx-xxxx-xxxx-x--x?-x x--|
E|-xxxx-xxxx-xxxx-x--x?-x x--|

e|-xxxx-xxxx-xxxx---x x x x---xxx-xxx-xxx-|
B|-8888-7777-5555---12121212?-xxx-xxx-xxx-|
G|-xxxx-xxxx-xxxx---x x x x---999-777-888-| 
D|-5555-4444-2222---9 9 9 9---xxx-xxx-xxx-|
A|-xxxx-xxxx-xxxx---x x x x---777-444-555-|
E|-xxxx-xxxx-xxxx---x x x x---xxx-xxx-xxx-|


Chorus
Outro

e|-----------------------|
B|-----------------------|
G|-11-9-11---------------|
D|---------12-12-11-11-9-| x3
A|-----------------------|
E|-----------------------|

And just end with G|---12---|