There are many versions of London Bridge, here is the best-known.
London Bridge is falling down, falling down, falling down,
London Bridge is falling down, my fair lady.
Build it up with wood and clay, wood and clay, wood and clay,
Build it up with wood and clay, my fair lady.
Wood and clay will wash away, wash away, wash away,
Wood and clay will wash away, my fair lady.
Build it up with iron and steel, iron and steel, iron and steel,
Build it up with iron and steel, my fair lady.
Iron and steel will bend and bow, bend and bow, bend and bow,
Iron and and steel will bend and bow, my fair lady.
London Bridge is falling down, falling down, falling down,
London Bridge is falling down, my fair lady.
traditional. copyright unknown.