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It uses its Flying Eye Hospital to visit poor areas.
Who does it treat ?
It treats people with eye problems.
What do the doctors do on the plane?
The doctors do eye operations on the plane.
It uses Flying Eye Hospital to visit poor areas.
Flying Eye Hospital is used to visit poor areas.
It treats people with eye problems.
People with eye problems are treated.
The doctors do eye operations on the plane .
Eye operations are done on the plane by the doctors.
uses
treats
do
We do not know or do not need to know who performs the action.
When to use the passive voice?
It is obvious who performs the action.
The action is more important than the person who performs the action.
Flying Eye Hospital is used to visit poor areas.
People with eye problems are treated.
Eye operations are done on the plane by the doctors.
How to form the passive voice?
Subject + be + P.P.
How to form the passive
voice in the simple present tense?
is
am
are
Subject + be + P.P. +(by + the performer)
Subject + be not+ P.P. +(by + the performer)