He had killed a dog
Change into Passive
Answers
Given statement is, "He had killed a dog."
First have a look at the tense used in the statement. It's past perfect tense.
Statements of past perfect tense in active voice are in the form, "Subject + had + V₃ form of verb + Object".
So the statements in passive voice will be, "Object + had been + V₃ form of the verb + by + Subject."
In this expansion, if the subject is a noun phrase, we write the same, but if it is a subjective pronoun, we use the equivalent objective pronoun.
Likewise, if the object is a noun phrase, we write the same, but if it is an objective pronoun, we use the equivalent subjective pronoun.
Expand the given sentence.
"He + had + killed + a dog."
Here, 'He' is the subject, 'had' is used, 'killed' is the V₃ form of the verb, and 'a dog' is the object.
Since the subject 'he' is a subjective pronoun, we use the equivalent objective pronoun 'him' in passive voice.
The object 'a dog' is just a noun phrase, so we use the same in passive voice too.
So the expansion of the statement in passive form will be,
A dog + had been + killed + by + him.