For posterity, here are the current "verses" of the song:

• The wheels on the bus go round and round
• The wipers on the bus go swish swish swish
• The door on the bus goes open and shut
• The windows on the bus go up and down
• The Mommies on the bus go "Shh, Shh, Shh"
• The Daddies on the bus go "I love you"
• The Grandpa Bob on the bus goes "Pinch, Pinch, Pinch"
• The Granny Franny on the bus goes "I want you to give me a hug"
• The Grandma Alicia on the bus go goes "I want a kiss"
• The Evan (Melanie's friend) on the bus goes "On Wisconsin!"
• The Bree (Melanie's teacher) on the bus goes "Kids aren't listening to me"
• The Deborah (Melanie's teacher) on the bus goes "Hola, amigos"
• The Jenna on the bus goes "Hi, Hi, Hi"
• The Melanie on the bus goes "Um, Um, Um"
  

Sure to be updated.