Réponse :

Bonjour,

Le passif =

 subet  + BE ( conjugué au temps de la voix active) + participe passé + complément d'agent introduit par "by"

BE - au présent  =  am/ are / is

BE - au prétérit  = was / were

BE - au futur   = will be

BE - au présent perfect  = has been / have been

Participe Passé ( 3ème colonne des verbes irréguliers )

Mettez ces phrases à la voix passive :

1. Edward took the job.  

phrase au prétérit donc, à la voix passive :   was + participe passé

The job was taken by Edward.

2. The president made a long speech.

A long speech was made by the president.

3. The players wear red shirts.

phrase au présent donc, à la voix passive :  are + participe passé

Red shirts are worn by the players.

4. The police looked for the criminals.

The criminals were looked for by the police.

5. Helen will buy the theatre tickets.

phrase au futur donc, à la voix passive :  will be + participe passé

The theatre tickets will be bought by Helen

Mettez ces phrase à la voix passive sans complément d'agent :

1. He stole Philip's bike.

Philip's bike was stolen

2. Someone speaks Chinese

Chinese is spoken.

3. They will deliver the boxes.

The boxes will be delivered.

4. People discuss the reports.

The reports are discussed.

5. Someone has cleaned the office.

phrase au présent perfect donc, à la voix passive  : has been + participe passé.

The office has been cleaned.