will have been buttressing

• 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 buttress.
  buttress

  noun

  any external prop or support built to steady a structure by opposing its outward thrusts, especially a projecting support built into or against the outside of a masonry wall.

Related Words

• reinforce
• strengthen
• uphold