has been negating

• 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 negate (3rd person singular).
  negate

  verb (used with object)

  to deny the existence, evidence, or truth of.

Related Words

• annihilate
• belie
• cancel out
• disallow
• disprove
• invalidate
• neutralize
• nullify
• rebut
• reverse
• undo
• vitiate
• void