1. I will open the door.
2. The door will be opened by me.
3. The door shall be opened by me.
(Which one is the passive voice of #1?)
4. He will finish the homework this evening.
5. The homework will be finished this evening by him.
6. The homework will be finished by him this evening.
(Which passive sentence is correct? Are both OK as the passive form of #4?)
#2 is the passive of #1. (#3 has a different auxiliary verb, "shall.")
Both 5 and 6 are passives of 4; 6 reads a bit more smoothly, than 5.
Passive voice in a sentence is used when the subject of the sentence is the receiver of the action, rather than the doer of the action. In both examples, we need to determine which sentence is in passive voice.
For the first set of sentences:
1. "I will open the door" - This is in active voice. The subject "I" is performing the action "will open."
2. "The door will be opened by me" - This is in passive voice. The subject "The door" is receiving the action "will be opened" performed by "me."
3. "The door shall be opened by me" - This is also in passive voice. The subject "The door" is receiving the action "shall be opened" performed by "me."
Therefore, both sentences 2 and 3 are in passive voice as they have the subject of the sentence receiving the action.
For the second set of sentences:
4. "He will finish the homework this evening" - This is in active voice. The subject "He" is performing the action "will finish."
5. "The homework will be finished this evening by him" - This is in passive voice. The subject "The homework" is receiving the action "will be finished" performed by "him."
6. "The homework will be finished by him this evening" - This is also in passive voice. The subject "The homework" is receiving the action "will be finished" performed by "him."
Both sentences 5 and 6 are correct as they are both in passive voice, with the subject of the sentence receiving the action. The difference between them is the word order. Sentence 5 places the phrase "by him" at the end, while sentence 6 places it immediately after the verb.