has been succumbing

• present perfect progressive

  present perfect progressive

  Used to describe an action that began in the past, has continued continuously, and is still in progress.

  of succumb (3rd person singular).
  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