will have been celebrating

• future perfect progressive

  future perfect progressive

  Used to describe a continuous action that will progress up until a designated point of completion in the future.

  of celebrate.
  celebrate

  verb (used with object)

  to observe (a day) or commemorate (an event) with ceremonies or festivities.

Related Words

• honor
• laud
• observe
• perform
• praise
• proclaim
• revere