have been quelling

• 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 quell.
  quell

  verb (used with object)

  to suppress; put an end to; extinguish.

Related Words

• annihilate
• conquer
• crush
• extinguish
• overcome
• put down
• quench
• silence
• stamp out
• stifle
• subdue