Standard Tuning
I usually capo the 3rd fret.

Intro:
                    Am7      Em7  G     Am                    Am7     Em7  G      Am               

E-----------------|-----3-------------|---------------------|-----3-------------|-------------------|
B---------1-0-----|-----1-----0-----0-|-1-----------1-0-----|-----1-----0-----0-|-1--------3/5--5-5-|
G---0-0h2-----0h2-|-2---2-----0-----0-|-2-----0-0h2-----0h2-|-2---2-----0-----0-|-2----0h2-3/5--5-5-|
D-2---------------|---2-------0-----0-|-2---2---------------|---2-------0-----0-|-2----2------------|
A-----------------|-0-----------------|-0-0-----------------|-0-----------------|-0--0--------------|
E-----------------|---------0---0h3-3-|---------------------|---------0---0h3-3-|-------------------|



   E7           F#7   F7       E7   E7+6    Am            Em           Am                    Em7  G

E-------------------|---------------------|--------------------------|------------------------------|
B-3---3-1h3-1---4-4-|-3----3-----3----1---|-1----------------------1-|-1----------------------0---0-|
G-4---4-------2-3-3-|-2----2-----1----1---|-2----0h2-0h2-0h2---0h2---|-2----------------------0---0-|
D---0-----------2-2-|-1----1-----0----0---|-2----2-------0---0-------|-2----------------------0---0-|
A-----------------4-|---------------------|-0--0---------------------|-0----------------------------|
E-0-------------2---|-1--1---1p0-0--0---0-|--------------0-----------|------------------------0---3-|

                                                                           Ain't no sunshine when she's 




Verse:

  Am7              Em7 G   Am                    Em7   G   Am7             Em7  G  Am               

E------3--3-3--3-3-------|-------------------------------|------3--3-3--3-3-------|-----------------|
B-1----1--1-1--1-1-0---0-|-1----------------------0----0-|-1----1--1-1--1-1-0---0-|-1---------------|
G-2----2--2-2--2-2-0---0-|-2----------------------0----0-|-2----2--2-2--2-2-0---0-|-2---------------|
D-2----2--2-2--2-2-0---0-|-2----------------------0----0-|-2----2--2-2--2-2-0---0-|-2---------------|
A-0--0-------------------|-0-----------------------------|-0--0-------------------|-0---------------|
E------------------0---3-|------------------------0----3-|------------------0---3-|-----------------|

 gone.                         It's not warm when she's a-way.                     Ain't no sunshine when she's




  Em7         F#7   F7       E7    E7+6   Am           Em            Am 

E-----------------|---------------------|--------------------------|----
B-0----0---0--4-4-|-3----3-----3----1---|-1----------------------1-|-1--
G-0----0---0--3-3-|-2----2-----1----1---|-2----0h2-0h2-0h2---0h2---|-2--       Repeat for Verse 2, then 
D-0----0---0--2-2-|-1----1-----0----0---|-2----2-------0---0-------|-2--       mute all guitar strings.
A---------------4-|---------------------|-0--0---------------------|-0--
E-0--0---0-0--2---|-1--1---1p0-0--0---0-|--------------0-----------|----




Bridge:
(no guitar)

I know, I know, I know, I know
I know, I know, I know, I know, I know
I know, I know, I know, I know
I know, I know, I know, I know, I...

  A7sus             *Em7                  F7      E7    E7+6    Am                         Let ring.

E-5-------5-5-----|--------------------|---------------------|--------------------------|-0------||
B-5-------5-5-----|-0----0----0----0---|-3----3-----3----1---|-1----------------------1-|-1------||
G-7-------7-7-----|-0----0----0----0---|-2----2-----1----1---|-2----0h2-0h2-0h2---0h2---|-2------||
D-5-------5-5-----|-0----0----0----0---|-1----1-----0----0---|-2----2-------0---0-------|-2------||
A-7-------7-7-----|--------------------|---------------------|-0--0---------------------|-0------||
E-5-------5-5-----|-0--0---0--0--0---0-|-1--1---1p0-0--0---0-|--------------0-----------|--------||

  know when she's   gone,   always gone too long, any time she goes away.      



I loop from the *Em7 chord above, and sing the last line 3 times, before going on to the final Am chord.