had been leapfrogging

• past perfect progressive

  past perfect progressive

  Used to describe an action that was ongoing continuously in the past up until another past event interrupted it.

  of leapfrog.
  leapfrog

  noun

  a game in which players take turns in leaping over another player bent over from the waist.

Related Words

• bounce
• dive
• drop
• fall
• hurdle
• plunge
• rise
• upsurge
• vault