has been fingerprinting

• 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 fingerprint (3rd person singular).
  fingerprint

  noun

  an impression of the markings of the inner surface of the last joint of the thumb or other finger.

More Suggestions

• DNA fingerprinting
• genetic fingerprinting
• screen-printing
• finger painting
• finger-pointing
• three-dimensional printing