This is how I remember the chorus. I never knew the verses. I sing this chorus a lot every year especially during Black History month celebrations.

Freedom doesn’t come like a bird on the wing
Doesn’t come down like the summer rain
Freedom, Freedom is a hard won thing
You have to work for it, fight for it, day and night for it
And every generation has to win it again.
...
Pass it on to your children Mother
Pass it on to your children Brother
You have to work for it, fight for it, day and night for it
Pass it on to you children, Pass it on.