Chapter 32: The Perfect Passive System

The perfect passive tenses are formed by combining the perfect participle (e.g. amatus, -a, -um: loved) with the auxiliary verb esse: to be.

So, amata sum: I have been loved is the perfect passive (participle agrees with subject, here 'I' is a woman).

Amatus eram: I had been loved is the pluperfect ('I' is a man here).

Amati erimus: we will have been loved is the future perfect ('we' are men or a mixed group).