1. Overview:
The passive voice is used when the focus is on the action rather than who performs the action. In sentences with two objects, the structure changes slightly, and it's important to know how to identify which object becomes the subject in the passive form.
2. Cases of Usage:
Case 1: When the first object (indirect object) becomes the subject.
Example: "The teacher gave the students a test." → "The students were given a test by the teacher."
Case 2: When the second object (direct object) becomes the subject.
Example: "The teacher gave a test to the students." → "A test was given to the students by the teacher."
3. Exceptions or Things to Pay Attention To:
Not all verbs can be used in the passive voice. For example, intransitive verbs that do not take an object cannot be made passive.
Example: "The dog sleeps." (This cannot be changed to passive because there is no object.)
