These chords are the same 
throughout the entire song!  
Fmaj7:003213
C= 032013
G?=320013 *Not quite sure what the name of the chord is 
but that is how you play it.

The song is played in that progression with
a strum pattern of DUDU and you never move your pinky
or pointer finger off the string.  Just walk your middle
and ring finger up the neck.  Listen to the song and play 
along...it sounds right on.

CAPO ON THE 3RD!

(Fmaj7)          (C)         (G?)
What if you were wearing a sundress,
(Fmaj7) (C)         (G?)
Sitting out on your front steps,
(Fmaj7)    (C)        (G?)
Waiting on someone to run with,
 (Fmaj7)(G)  (G?)
Oh baby, what if?

What if you were needing some restless heart,
Kickin' up dust in his fast car,
Pulling right up to where you are,
Oh baby, what if?

What if you wanted to feel alive,
Make something of the time you're killing,
What if you wanted somebody to love you right,
What if I was willing?
What if I was willing?

What if an old boy broke his back,
To get a pocket full of cash,
Just to blow it on anything you asked,
Oh baby, what if?

What if you wanted to feel alive,
Make something of the time you're killing,
What if you wanted somebody to love you right,
What if I was willing?

What if I could be there in a heartbeat?
Yeah, what if there was room on my front seat?
Baby, baby, baby ...

What if you wanted to feel alive,
Make something of the time you're killing,
What if you wanted somebody to love you right,
What if I was willing?
What if you wanted to ride with the windows down?
Bare feet banging on the dash to Dylan,
What if you wanted somebody to love you right?
What if I was willing?
What if I was willing?
What if I was willing?

(That's what I'm talking 'bout...)