Breakdown of Le territoire a été attaqué par l'armée avant la bataille.
être
to be
avoir
to have
par
by, through / out of (motive)
attaquer
to attack
Questions & Answers about Le territoire a été attaqué par l'armée avant la bataille.
Why is it a été attaqué instead of just a attaqué?
a attaqué is the active voice, which would mean the territory did the attacking. To make it passive ('was attacked'), you put the verb être into the passé composé, giving us a été. Then you add the past participle of the main verb, attaqué.
Would the spelling of attaqué change if the subject was feminine?
Yes! In the passive voice, the past participle always agrees with the subject. Since le territoire is masculine singular, attaqué takes no extra letters. If the subject were feminine, like la ville (the city), it would be la ville a été attaquée. Notice that it agrees with the subject receiving the action, not with the army doing the attacking.
Why do we use par for 'by' here instead of de?
Why is 'before' translated as avant here instead of devant?