You can get the lyrics here (click) (a few verses anyway).

PA

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MMMM, I WANT TO LINGER

CHORUS
Mm-Mm I want to linger
Mm-Mm a little longer
Mm-Mm a little longer here with you

Mm-Mm it’s such a perfect night
It doesn’t seen quite right
That it’s my last night here with you

CHORUS

Mm-Mm and come September
We’ll all remember
Our lasting friendship true and strong

CHORUS

Mm-Mm and as the years go by
Remember this and sigh
This is goodnight and not good bye.