Answer:
- This Letter shall have been finished by me.
Step-by-step explanation:
Given sentence :
- I shall have finished this letter .
The given sentence is in Future perfect tense.
Structure :
• Subject + Will/shall + have + V3 + object
Passive Voice of Future perfect tense is,
• Object + Will/shall + have been + V3 + Subject.
To change the sentence into passive voice,
- Replace the subject of the active voice with the object of the passive voice and the object of the active voice with the subject of the passive voice.
- Use the passive form of Future perfect tense.
- Use a suitable preposition 'by' in the sentence.
The required passive voice of the given sentence is,
- This Letter shall have been finished by me.