I'm learning this song by request.  This song is relatively simple.
Listen to the song for timing and strumming patterns.

Why Can't I
As performed on "Liz Phair"
Written by Liz Phair

Standard tuning

Intro  (Keyboard arranged for guitar, x3)
You can use a pick here, but you'd have to be kind of quick, so I'd recommend finger-picking
e[----------14-------12-------11---------------------------
B[----12-------12-------12-------12------------------------
G[-11----11-------11-------11-------11---------------------
D[---------------------------------------------------------
A[---------------------------------------------------------
E[---------------------------------------------------------

End intro on this
e[-9-------11--------9------------------------------------
B[---12-------12-------12------12-------------------------
G[------11-------11-------11------------------------------
D[--------------------------------------------------------
A[--------------------------------------------------------
E[--------------------------------------------------------

Verse (x2)
An acoustic guitar the verse
e[---------------------------------------------------------
B[---------------------------------------------------------
G[-4-------------------------------------------------------
D[-4--------4--------6--------2----------------------------
A[-2--------4--------6--------2----------------------------
E[----------2--------4--------0----------------------------

Pre-chorus
Just strum this a bunch of times
e[---------------------------------------------------------
B[---------------------------------------------------------
G[---------------------------------------------------------
D[-2--------------4-----------------------------------------
A[-2--------------4-----------------------------------------
E[-0--------------2-----------------------------------------

Chorus (x2)
Distorted electric                     Only play this after 1st chorus
e[------------------------------------]---------------------
B[------------------------------------]---------------------
G[------------9----------4------------]---------------------
D[-6----------9----------4----------4-]-2--------------4----
A[-6----------7----------2----------4-]-2--------------4----
E[-4----------0---------------------2-]-0--------------2----

Play whole intro

Verse

Pre-chorus

Chorus

Bridge (x2)              End Bridge on this
e[---------------------]----------------------------------
B[---------------------]----------------------------------
G[------------8--7-----]----------------------------------
D[-6---8-9----8--7-----]-2------------2-------------------
A[-6---8-9----6--9-----]-2------------2-------------------
E[-4---6-7-------------]-0------------0-------------------

Play the first half of the chorus clean, then play the whole thing one more time
with distortion

Outro                            End on this     Strum once
e[------------------------------]---------------------------
B[------------------------------]---------------------------
G[-4----------------------------]-4-------------------------
D[-4--------2--------6--------2-]-4-------------------------
A[-2--------2--------6--------2-]-2-------------------------
E[----------0--------4--------0-]---------------------------

That's it

Song Structure
Intro (x3)
End intro
Verse (x2)
Pre-chorus
Chorus (x2)
Intro (x3)
Verse (x2)
Pre-chorus
Chorus (x2)
Bridge (x2)
End bridge
Clean chorus
Just plain chorus (x2)
Outro
End


Enjoy.