The lyrics to the song "The Wheels on the Bus" begin, "The wheels on the bus go round and round." "Round and round" is then repeated twice, followed by another repetition of the opening line. Each verse of the song alters this formula with a different object and sound.
The opening verse of "The Wheels on the Bus" is always: "The wheels on the bus go round and round / Round and round / Round and round / The wheels on the bus go round and round / All through the town." After this, each verse keeps the same basic rhythm and formula, but with a different subject noun. For example, the second verse of the lyrics shown on N.I.H. Kid's Pages begins with "The wipers on the bus go swish, swish, swish." Every earlier iteration of "wheels" is replaced by "wipers," and likewise, every iteration of "round and round" is replaced with "swish, swish, swish."
The song continues for several verses, including subjects such as money, driver, mommy, baby and horn. The order of the verses can easily be changed, and more verses can be added. Optional further verses include "The doors on the bus go open and shut," and "The bell on the bus goes ding, ding, ding." Every verse closes with the phrase "All through the town."