has been scrumming

• present perfect progressive

  present perfect progressive

  Used to describe an action that began in the past, has continued continuously, and is still in progress.

  of scrum (3rd person singular).
  scrum

  noun

  a rugby play in which three members of each team line up opposite one another with a group of two and a group of three players behind them: the ball is then rolled between the opposing front lines and players attempt to kick the ball backward to a teammate.

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