The Past Perfect Continuous Tense (Passive Voice) – AB51 ...
ab51.orgThe passive voice changes ‘x does something to y’ to ‘y has something done to it by x’. To turn the past perfect continuous into its passive voice: 1. swap the subject and object. 2. change ‘had been …ing’ to ‘had been being + p.p.’. *Perfect participle (p.p.) = gone, done, seen, eaten etc.