The document discusses active and passive voice in grammar. It defines active voice as when the subject performs the action of the verb, and passive voice as when the subject receives the action. It provides examples of changing sentences from active to passive voice and discusses the various forms passive voice can take, including with modal verbs. Rules are given for forming the passive voice and sample sentences are provided for practice changing to the passive voice.

1. Understanding active and passive voice Done by : Alya Mehrezi

11. The floers can be infected by insects Modal+ be+ pp Modals e.g can, may, must Do you know who is going to be invited ? (to) be + pp Infinitive The problem could have been solved . Modal+ have been+ pp Modals e.g could, had to, etc There’s no point in hurrying. It will all have been eaten by now. will have been + pp Future perfect They are going to be sold by the manager Is/are going to be +pp Going to future The boy will be invited to the party by his friend will be + pp Will future Example Form passive