Passive Voice

Here is the structure of the Passive Voice: subject + auxiliary verb (be) + main verb (past participle).

After you have finished reading the structure read the short story, "Haunted House" and try to work out what the constructions in bold and italics mean. 

Sometimes a modal verb can be used before the auxiliary verb: subject + modal verb (could)+ auxiliary verb (be) + main verb (past participle) 
We use the passive when:

•  we want to make the active object more important

•  we do not know the active subject