will have been assembling

• 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 assemble.
  assemble

  verb (used with object)

  to bring together or gather into one place, company, body, or whole.

Related Words

• compile
• construct
• erect
• fit
• form
• join
• manufacture
• produce
• set up