PAST PERFECT CONTINUOUSPerhaps you had been seeing sentences like these classes before.
PAST PERFECT CONTINUOUS
PAST PERFECT CONTINUOUSWe usually use The Past Perfect Continuous to show that a situation continued in the past until another situation in the past.“I’d  been  doing  language  works  all  weekend  long  so  I decided  to  have  a  break  at  Patty’s house.”
PAST PERFECT CONTINUOUSnowpastPast perfect continuous“I’d  been  doing  language  works  all  weekend  long” “I decided  to  have  a  break  at  Patty’s house.”
PAST PERFECT CONTINUOUSWe also use The Past Perfect Continuous in:Reported speech.“Marilyn  said  she  had  been  waiting  for  me  for  three days  in  the  park.”“Diego  said  he  had  been  drinking  milk  until  get drunk.”“My  classmates  said  they  had  been  saving  money  for a  barbecue   this  weekend.”
PAST PERFECT CONTINUOUSThis tense is often used with these words or phrases:
PAST PERFECT        V/S PAST PERFECT CONTINUOUS

past perfect continuous

  • 1.
    PAST PERFECT CONTINUOUSPerhapsyou had been seeing sentences like these classes before.
  • 2.
  • 3.
    PAST PERFECT CONTINUOUSWeusually use The Past Perfect Continuous to show that a situation continued in the past until another situation in the past.“I’d been doing language works all weekend long so I decided to have a break at Patty’s house.”
  • 4.
    PAST PERFECT CONTINUOUSnowpastPastperfect continuous“I’d been doing language works all weekend long” “I decided to have a break at Patty’s house.”
  • 5.
    PAST PERFECT CONTINUOUSWealso use The Past Perfect Continuous in:Reported speech.“Marilyn said she had been waiting for me for three days in the park.”“Diego said he had been drinking milk until get drunk.”“My classmates said they had been saving money for a barbecue this weekend.”
  • 6.
    PAST PERFECT CONTINUOUSThistense is often used with these words or phrases:
  • 7.
    PAST PERFECT V/S PAST PERFECT CONTINUOUS