had been succumbing

• 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 succumb.
  succumb

  verb (used without object)

  to give way to superior force; yield.

Related Words

• bow
• break down
• buckle
• capitulate
• cave in
• cease
• defer
• give in
• give way
• go down
• pass away
• perish
• quit
• wilt
• yield