INTRO:
Cm
I saw him standin' there in the parkin' lot
Ab
He asked if I came here a lot
Cm Bb
And this is how I responded
CHORUS:
Eb
I forgot my name
I forgot my telephone number
Cm
If he wanna see me
He don't even know it
Ab
I forgot my address
Damsel in distress
Bb
I forgot my boyfriend
Was the one that had bought me this rock
[ Tab from: https://www.guitartabs.cc/tabs/b/britney_spears/amnesia_crd.html ]
Eb
I get amnesia when I'm standin' next to you-ou-ou
Cm
He's been with me for several years I know this much is true
Ab
Didn't know it was over, 'til you came on over
Bb
And told me that you just, just can't
Eb
Forget about me
VERSE:
Eb
I talk to my girls I can talk to my girls like crazy
Cm
To anyone, I speak my mind I tell 'em off, it don't phase me
Ab
I'm not lazy But boy, lately
Bb
When I see you, I stu-utter
Words just slip away like butterflies
The same chord progression (Eb, Cm, Ab, Bb) is then repeated throughout the duration of the song.