Drifting Lyrics

I am just going to list the chords, in order. Here goes:
G Dm Dm7 G (repeats)
Then at the ?ooohhh? part it goes ?.
Ooooh oohh??????.
oohh ??????
Oohh?????.. oohh??????.
Oohh???????????
Cmaj7: x32000 or x35453
Cmaj7/G: 332000 or 335453
Fmaj7: x03210 or x8 10 9 10 8
Dm: xx0231 or x57765
Dm7: xx0211 or x57565
C/Bb: x12010
Db(9): x43x44
Db: x46664 or x43121 or xx3121
Ab: 466544
Eb: x68876 or xx5343 or xx1343