Passive past perfect sentences
had + been + past participle (3rd form)
Examples: Passive past perfect
The window had
been cleaned.
The door had been
closed.
Electric cars had been
invented.
English passive past perfect
Passive Voice with free online passive past perfect, passive rules and passive voice examples.
Online exercises English grammar and courses.
Free tutorial to English active and passive voice. So don't hesitate to learn the difference between active voice and passive voice in writing with the
English Grammar index active voice and passive voice.