When to use the Passive Future Perfect?
The passive future perfect describes situations that will be completed at specific points in the future. Well, this description is similar to the use of Future Perfect tense, however, with the use of passive voice, the focus is only on the result (the object), not the doer (the person/ thing that does the action).
*I explained the differences between passive and active voice here if you need further detailed explanation.
So, let’s have a look at the following examples to understand the idea better:
Example:
The report will have been completed by this evening.
Explanation:
Our focus is on the result and not the person who will complete the report. That’s why it is called (passive voice).
Passive voice 👉 the focus is on the result.
Active voice 👉 the focus is on the person/ thing (subject)
How to form sentences using the passive future perfect?Â
You need to follow this rule:
Subject (result) + “will have been” + past participle of the main verb + (optional: by + agent)
*The subject is (the object in active sentences).
Example:
Active sentence: She will have finished her work by the evening
Passive sentence: Her work will have been finished by the evening.
Explanation: the object in the active sentence becomes the main subject in the passive sentence. Then, add (been) to the future perfect tense as shown in the example.
Example:
Active voice: The builders will have finished the bridge by next month
Passive voice: The bridge will have (been) completed by next month.
Example:
Active voice: The company will have launched the new product by next year.
Passive voice: The new product will have (been) launched by next year.
Example:
Active voice: They will have repaired the street by the time he arrives.
Passive voice: The street will have (been) repaired by the time he arrives.
How to form questions using the passive future perfect?
With (yes/ no) answers:
Will + subject + have been + past participle + (by + time)?
Example:
Statement: They will have repaired the street by the time he arrives.
Question: Will the street will have (been) repaired by the time he arrives?
Example:
The company will have launched the new product by next year.
Will the new product will have (been) launched by next year?
Example:
She will have finished her work by the evening
Will Her work will have been finished by the evening?
However, if you need to provide detailed answers, use (Wh-questions):
Wh-word + will + subject + have been + past participle + (by + time)?
Example:
When will Her work have been finished?
What will have been launched by next year?
How will the report have been by this afternoon?”
How to form negative sentences using the passive future perfect?
You need to add (not) after (will) as shown in the following examples:
Examples:
The project will not have been completed by this afternoon.
The presentation will not have been done by 5:00 pm.
The invitation will not have been sent out by the end of this week.
*You can use the complete form (have not/ has not) or the contraction form (haven’t/ hasn’t), it depends on the person you speak with. Professionally and in formal settings, use the complete form. When speaking informally with family, friends, chatting, etc use the contraction form.
I hope you find this English grammar lesson useful, let me know if you have any questions related to the use of the passive future perfect tense or if you have any suggestions for the upcoming topics. Yesterday, I explained other English grammar topics here so feel free to check it Also, if you need a private discussion or lessons, email me
Have a great day & take care!