FORM & STRUCTURE
She ___ already ___ (complete) her assignment
has completed
Form the passive:
They have built a bridge
A bridge has been built
I ___ (have lost / have been lost) my keys
have lost
Explanation:
We use Present Perfect (active) because the subject (I) is the doer of the action.
The focus is on the result in the present — the keys are missing now.
“Have been lost” would be passive, which means the keys are the subject, not “I”. So it doesn’t fit the sentence structure.
She has been finished the task
She has finished the task
Why Present Perfect here:
“I have broken my phone”
result is important now
The assignment ___ been completed
has
Form the passive:
She has written three emails
Three emails have been written
The keys ___ (have lost / have been lost)
have been lost
Explanation:
We use Present Perfect Passive because the subject (the keys) receives the action, not performs it.
Keys cannot lose themselves → someone lost them.
The focus is on the result (they are missing now), not on who did it.
structure: have + been + V3
The homework has done
The homework has been done
Why passive here:
“The bridge has been built”
we don’t care who built it
Make question (passive):
The report has been written
Has the report been written?
Form the passive:
They have repaired the car
The car has been repaired
She ___ (has finished / has been finished) the work
has finished
Explanation:
We use active voice because she is the agent (the person who does the action).
“Has been finished” would mean that someone finished her, which is logically incorrect.
So we must use Present Perfect Active to show that she completed the work.
They has completed the project
They have completed the project
Difference:
“I have finished the work” vs
“The work has been finished”
focus on doer vs result
Negative (active):
I have seen this movie
I haven’t seen this movie
Form the passive:
Someone has cleaned the room
The room has been cleaned
The work ___ (has finished / has been finished)
has been finished
Explanation:
The subject (the work) cannot perform the action - it is completed by someone.
So we use passive voice to focus on the result, not the person.
This is very common in formal English and reports.
The car has repair
The car has been repaired
Why passive in reports/news?
to sound objective and formal
Negative (passive):
The task has been finished
The task hasn’t been finished
Form the passive:
People have completed the project
The project has been completed
We ___ (have done / have been done) the task
have done
Explanation:
“We” is the doer, so we need active voice.
“Have been done” would mean that someone did us, which is incorrect and unnatural.
We use Present Perfect Active to show that the task is completed by us, and the result is important now.
I have been seen this film
I have seen this film
Explain meaning difference:
“The task has been completed” vs
“The task has been being completed”
second is incorrect in this tense; Present Perfect Passive shows completed result, not ongoing passive