In the middle eight verse, John isn't quite sure of the lyrics, which actually were meant to go: "Well there's gonna be a time when I'm going to change your mind...". John, thinking the lyrics go "...make your mind..." then realizing the mistake when he hears McCartney, ends up singing, "...mange your mind..." which to this day remains uncorrected on the finished master. Additionally you can hear that they struggled not to laugh while singing the lyric when they start the next verse: "Imagine I'm in love with you..."
