will have been substantiating

• 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 substantiate.
  substantiate

  verb (used with object)

  to establish by proof or competent evidence.

Related Words

• affirm
• confirm
• corroborate
• debunk
• demonstrate
• justify
• prove
• ratify
• validate
• verify