has been twitching

• 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 twitch (3rd person singular).
  twitch

  verb (used with object)

  to tug or pull at with a quick, short movement; pluck.

Related Words

• blink
• flutter
• jerk
• jiggle
• shudder
• tremble