Passive or past participle adjective?

Hi,

Sometimes, it’s difficult to recognize passive and past participle adjective.

There are two verbs “Transitive-A transitive verb requires both a subject and an object “and “Intransitive- cannot take a direct object”. While considering passives, we have to identify the object. Indirect object (which, like a direct object, is always a “noun” or “pronoun”. in a sense, the recipient of the direct object. To determine if a verb has an indirect object, isolate the verb and ask to whom? To what?, for whom?, or for what? after it.

E.g. A postcard was sent to him.

He was sent a post card.

A direct object answers the question "What?", while an indirect object answers the question "To whom?" or "For whom?

Direct object- A postcard (What was sent to him?).

Indirect object- He (To whom was the post card sent?).

For intransitive verbs (can not take a direct object).

What about this sentence?

They have been married for 3 years. Should it be, They have married for 3 years?

See the word “Marry”. Marry is a transitive and intransitive verb as well, but here it’s a transitive.

Per rule if the question is asked “What” or “Whom” and it’s a passive voice sentence. We can’t figure out the direct object here!

What would be its active voice?

Is the word marry used here a past participle adjective?

Also what does the word "perceived"indicate here?

Ambitious guys are usually perceived to be more attractive by girls since they provide them with a sense of a secure future.

Thanks!!