Get Back tab by Sum 41

Intro Pt. 1 Bass Intro
|-------------------------|
|-------------------------|
|-------------------------|
|-------------------------|
|-------------------------|
|-1-1-1-4-4-3-1-1-1-4-4-3-|

Pick scrape, Dave goes from the head down the neck, Deryck goes up the neck to the head.
Intro Pt. 2 Guitars come in
|---------------------|\
|---------------------| \
|---------------------| \
|-3333-66-5-333-66-88-|  \
|-3333-66-5-333-44-66-|  \
|-1111-44-3-111-------|   \
               Twice!!
|---------------------|   //
|---------------------|  //
|---------------------|  //
|-3333-66-5-333-11-22-| //
|-3333-66-5-333-11-22-| //
|-1111-44-3-111----00-|//
PM       .. ..

Verse (some form of this)
|-------------------------|\
|-------------------------| \
|-------------------------| \Repeat as
|-3-3-3-6-6-5-3-3-3-6-6-5-| //necessary
|-3-3-3-6-6-5-3-3-3-6-6-5-| //
|-1-1-1-4-4-3-1-1-1-4-4-3-|//
PM........................

Chorus
Guitar 2
|---------------------|\
|---------------------| \
|---------------------| \
|-3333-66-5-333-11-22-|  \
|-3333-66-5-333-11-22-|  \
|-1111-44-3-111----00-|   \
PM       .. ..    \Repeat as
Guitar 1           //necessary
|---------------------|   //
|-7777-99-8-777-44-55-|  //
|---------------------|  //
|-3333-66-5-333-11-22-| //
|---------------------| //
|---------------------|//

Most of that is just repeated in some form throughout the song.
Sorry, don't know guitar two's parts in the rest of the song.