I’m singing this song for years and suddenly realize that the words I’ve been saying are all wrong, well it’s alright. I now give myself and fellow singers the right and if necessary the duty to change the words of any song if it feels right. Of course you might not want to do this in a public place for only you will know the next verse but it’s perfectly good among friends or even in your head. I’ll go a step further you have no clue what the words are or don’t care but instead are drawn to the rhythm, therefore create your own beat to go along with this song, add a different harmony or even a chorus that you believe it is lacking. Music is very personal so make it your own even if you’re the only one listening.