(Verse: Isabella)
I wanted you to see me
But for so long you were blind
Now it's time to face tomorrow
And leave all that stuff behind;
But what would our lives have been like
If you'd just given me a sign?
Cause I like you more than every other thing I like combined

(Pre-Chorus: Isabella)
I spent so many summers
Hoping something would begin
I thought that I was over you
But here I am again

(Chorus: Isabella)
What might have been

(Interlude: Mrs.Garcia-Shapiro, Phineas)
Phineas, honey, how are you?
Hi, Mrs. Garcia-Shapiro, uh, is Isabella here?
Oh no, sweetie, she’s gone
Gone like, driving car school gone?
Yes, you just missed her
It’s too bad you didn’t get to see her off
You know, since you were kids, she’s had a huge crush on you
Uh
I wish I had known
(Verse: Phineas)
I can't believe that all this time you never said a word
Although it's possible you did
And I just never heard
I never even noticed
I guess I wasn't that alert
But I must say that in retrospect
You were being quite overt

(Pre-Chorus: Phineas)
And now our endless summer's finally coming to an end,
I tried to make the most of every day
But now the years just seem misspent

(Chorus: Phineas)
What might have been

(Verse: Isabella, Phineas, Isabella and Buford)
I could have been your girlfriend
I could have been your fella
We might have been an item
They would have called us Phinabella
I would’ve held the door for you
I would’ve shared my umbrella
You could’ve held my hair back
When I was sick with salmonella (sick with salmonella)
(Pre-Chorus: Isabella, Phineas and both )
We could've been together
All you had to say was when
And though I wanted so much more
I guess you'll always be my friend

(Chorus: Isabella, Phineas and both)
What might have been
What might have been
What might have been

(Outro: Isabella)
(Sighs)
What might have been