Which verb form is used to indicate the perfect progressive tense? verb + -ed be + verb + -ing have + been + verb + -ing have + verb + -ed

Perfect tenses are the ones that use some form of "to have" with a past participle.
Progressive tenses are the ones that use "-ing" to indicate continuous action.
Putting the two together, to use that -ing form, our past participle is always been.

Perfect progressive tenses
has/have been (present)
had been (past)
will have been (future).

Therefore, a perfect progessive tense would look like this:
have + been + verb + -ing