had been confounding

• 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 confound.
  confound

  verb (used with object)

  to perplex or amaze, especially by a sudden disturbance or surprise; bewilder; confuse.

Related Words

• amaze
• astonish
• astound
• baffle
• bewilder
• discombobulate
• dumbfound
• embarrass
• faze
• mystify
• perplex
• puzzle
• rattle
• startle
• surprise