Just need the chords. Have the words. Here is a verse to help jog your memory:
Summertime, Summertime   by The Jamies

It's summertime, summertime, sum-sum-summertime,
Summertime, summertime, sum-sum-summertime,
Summertime, summertime, sum-sum-summertime,
Summertime, summertime, sum-sum-summertime,
Summertime!

Well, shuck them books and throw 'em away.
Say goodbye to dull school days.
Look alive and change your ways.
It's summertime!

Well, no more studyin' history,
And no more reading geography,
And no more dull geometry,
Because it's summertime.

        It's time to head straight for them hills.
           It's time to live and have some thrills.
           Come along and have a ball,
           A regular free-for-all.

Thanks in advance