This tab might not be 100% accurate and it's missing the lead chorus bit but it's enough to start with.

Tuning: Standard

Intro
|---------------------------------------------------|
|---------------------------------------------------|
|-5-5-5-5---------0-0-0-0-5-5-5-5-2-2-2/4-1-1---2-1-|
|-7-7-7-7-0-0-0-0-2-2-2-2-2-2-2-2-x-x-x---x-x---x-x-|
|-0-0-0-0-2-2-2-2-3-3-3-3-0-0-0-0-2-2-2---2-2---2-2-|
|---------3-3-3-3-----------------------------------|x2

Verse
|---------------------------------------------------|
|---------------------------------------------------|
|-5-5-5-5---------0-0-0-0-5-5-5-5-2-2-2/4-1-1---2-1-|
|-7-7-7-7-0-0-0-0-2-2-2-2-2-2-2-2-x-x-x---x-x---x-x-|
|-0-0-0-0-2-2-2-2-3-3-3-3-0-0-0-0-2-2-2---2-2---2-2-|
|---------3-3-3-3-----------------------------------|x2

Pre Chorus
|---------------------------------------------|
|---------------------------------------------|
|-5-5-5-5---------0-0-0-0-5-5-5-5-2-2-2/4-1~--|
|-7-7-7-7-0-0-0-0-2-2-2-2-2-2-2-2-x-x-x---x~--|
|-0-0-0-0-2-2-2-2-3-3-3-3-0-0-0-0-2-2-2---2~--|
|---------3-3-3-3-----------------------------|

Chorus
|-----------------------------------------------------------------|
|-----------------------------------------------------------------|
|-----------------5-5-5-5-5---------------------------------------|
|-7-7-7-7-7-7-7-7-5-5-5-5-5-------2-2-2-2-2-2-2-2-3-3-3-3-6-6-6-6-|
|-7-7-7-7-7-7-7-7-3-3-3-3-3-------2-2-2-2-2-2-2-2-5-5-5-5-6-6-6-6-|
|-5-5-5-5-5-5-5-5-----------------0-0-0-0-0-0-0-0-3-3-3-3-4-4-4-4-|x2
pm                . . . .

Intro but no guitar.
Verse and PC again

Chorus
|-----------------------------------------------------------------|
|-----------------------------------------------------------------|
|-----------------5-5-5-5-5---------------------------------------|
|-7-7-7-7-7-7-7-7-5-5-5-5-5-------2-2-2-2-2-2-2-2-3-3-3-3-6-6-6-6-|
|-7-7-7-7-7-7-7-7-3-3-3-3-3-------2-2-2-2-2-2-2-2-5-5-5-5-6-6-6-6-|
|-5-5-5-5-5-5-5-5-----------------0-0-0-0-0-0-0-0-3-3-3-3-4-4-4-4-|x4
pm                . . . .

Post Chorus
|-------------------------------------------------------|
|-------------------------------------------------------|
|-------------------------------------13-13-13-12~~~\\\-|
|-------------------------------------------------------|
|-------------------5-5-5-7-7-7-8-8-8-------------------|
|-5-5-5-7-7-7-8-8-8-------------------------------------|

Bridge (1st and 2nd times no guitar)
|-----------------------------------------------|
|-----------------------------------------------|
|------------7-7--------10-10--------7-7--------|
|-7-7--------7-7--------10-10--------7-7--------|
|-7-7--------5-5---------8--8--------5-5--------|
|-5-5-------------------------------------------|

|------------------------------------------5~-----|
|------------------------------------------6~-----|
|------------7-7--------10-10--------7~----7~-----|
|-7-7--------7-7--------10-10--------7~----7~-----|
|-7-7--------5-5---------8--8--------5~----5~-----|
|-5-5---------------------------------------------|

bridge 2
|-------------------------------------------------5-5-5-5-5-5-5-5-|
|---------------------------------6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-6-|
|-----------------5-5-5-5-5-5-5-5-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-|
|-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-|
|-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-|
|-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5-5---------------------------------|x2

Bridge 3
|-----------------------------------|
|-------------------------12-10-8-7-|
|-------------------------11-10-8-6-|
|-----------------------------------|
|-------------------5-5-5-----------|
|-5-5-5-7-7-7-8-8-8-----------------|

Chorus
|-----------------------------------------------------------------|
|-----------------------------------------------------------------|
|-----------------5-5-5-5-5---------------------------------------|
|-7-7-7-7-7-7-7-7-5-5-5-5-5-------2-2-2-2-2-2-2-2-3-3-3-3-6-6-6-6-|
|-7-7-7-7-7-7-7-7-3-3-3-3-3-------2-2-2-2-2-2-2-2-5-5-5-5-6-6-6-6-|
|-5-5-5-5-5-5-5-5-----------------0-0-0-0-0-0-0-0-3-3-3-3-4-4-4-4-|x4
pm                . . . .

Outro
|-------------------------------------------------------|
|-------------------------------------------------------|
|-------------------------------------13-13-13-12~~~\\\-|
|-------------------------------------------------------|
|-------------------5-5-5-7-7-7-8-8-8-------------------|
|-5-5-5-7-7-7-8-8-8-------------------------------------|

Fairly easy song (for Counting Heartbeats anyway).