These are all of the parts that I could figure out.
Tuning:standard
First off the main chords in the song are F#m and Bm over and over again.
main verse part part I like to add every so often
e|-------------------------------|-------------------------------|
B|-------------------------------|-------------------------------|
G|-------------------------------|-------------------------------|
D|---------7------7------7------7|-9-7---------------------------|
A|-(7/9)-9----9-9----9-9----9-9--|-----9-5-4---------------------|
E|-------------------------------|-------------------------------|
accordion part
e|-5------5-7-5------------|
B|---5-7--------7----------|
G|----------------7-6------|
D|-------------------------|
A|-------------------------|
E|-------------------------|
0:52 this part comes in and repeats
e|-------------------------|
B|-------------------------|
G|-------------------------|
D|-------------------------|
A|-------------------------|
E|-5\2--5/7----------------|
[ Tab from: http://www.guitaretab.com/m/mewithoutyou/313767.html ]
1:29 Chorus, repeat this.
e|-------------------------|
B|-------------------------|
G|-------------------------|
D|-------------------------|
A|-7/9-9-------------------|
E|-------------------------|
3:11 this sounds close to correct
e|---------------------------------------------------------------|
B|-----------play this twice-------------------------------------|
G|---------------------------------------------------------------|
D|----------------------------6-6------7-7-7-6-6-4-4-4-2-2-2-4-2-|X2
A|-0-0-0-0-0-7-7-7-4-4-4-4-4-7----9-9-9--------------------------|
E|---------------------------------------------------------------|
then third time little fill at 3:46
e|--------------------------------------|---2----|
B|--------------------------------------|---2----|
G|--------------------------------------|---2----|
D|----------------------------6-6-------|--------|
A|-0-0-0-0-0-7-7-7-4-4-4-4-4-7----9-----|--------|
E|--------------------------------------|--------|
last part, something like this till the end
e|------------------------|
B|------------------------|
G|------------------------|
D|------------------------|
A|-7/9-9\8/9\8/9\8/9------|
E|------------------------|