had been curtaining

• past perfect progressive

  past perfect progressive

  Used to describe an action that was ongoing continuously in the past up until another past event interrupted it.

  of curtain.
  curtain

  noun

  a hanging piece of fabric used to shut out the light from a window, adorn a room, increase privacy, etc.

Related Words

• decoration
• drape
• drapery
• screen
• shade
• shroud
• shutter
• veil