had been mothballing

• 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 mothball.
  mothball

  noun

  a small ball of naphthalene or sometimes of camphor for placing in closets or other storage areas to repel moths from clothing, blankets, etc.

Related Words

• conserve
• defend
• freeze
• keep
• perpetuate
• protect
• retain
• safeguard
• save
• secure
• store
• sustain
• uphold