shown

Etymology
From, , alternative form of , , past participle of. Morphologically equivalent to.

Verb

 * I had shown him the report already.
 * The report had already been shown to him.
 * The report had already been shown to him.

Usage notes

 * Garner's Modern American Usage favors over  as past participle and claims it is mandatory for passives. In other forms of English  is the only correct past participle.