has been quashing

• 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 quash (3rd person singular).
  quash

  verb (used with object)

  to put down or suppress completely; quell; subdue.

Related Words

• annul
• clamp down on
• crack down on
• invalidate
• overrule
• repeal
• rescind
• reverse
• revoke
• set aside
• squelch
• undo
• vacate
• veto
• void