The passive form of a verb is made from the past participle of the verb and the auxiliary verb «shodan» (to become) conjugated in the target tense.

Simple verbs

The passive conjugation of «sâkhtan» (to make, to build) in 3rd person singular:

indicative mood
past simplesâkhte shodit was built
past narrativesâkhte shodeit has been built
past precedentsâkhte shode budit had been built
present imperfectsâkhte mishavadit is (being) built
future simplesâkhte khwâhad shodit will be built
subjunctive mood
past narrativesâkhte shode bâshad-
present simplesâkhte beshavad-

Compound verbs

Regarding compound verbs, if the verb is kardan (e.g. bâz kardan), the passive voice forms by replacing kardan with shodan and then conjugating the new verb (e.g. bâz shodan) in the target tense:

indicative mood
past simplebâz shodit was opened
past narrativebâz shodeit has been opened
past precedentbâz shode budit had been opened
present imperfectbâz mishavadit is (being) opened
future simplebâz khwâhad shodit will be opened
subjunctive mood
past narrativebâz shode bâshad-
present simplebâz beshavad-

In addition to shodan, there are also other auxiliary verbs for the passive voice. gashtan (to turn) and gardidan (to turn) are used in written Persian. They suggest more formality: