Convert the sentence provided below from its passive voice structure to an active voice structure: The guests must have been informed about the delay by the coordinator.
The coordinator must have informed the guests about the delay.
The modal perfect passive "must have been informed" expresses a confident past deduction, and its active equivalent keeps the same modal perfect form: "must have informed."
The agent "by the coordinator" in the passive sentence becomes the subject in the active sentence, giving "The coordinator must have informed the guests about the delay."
"Might inform" changes both the modal's certainty and the tense, "had informed" drops the modal entirely, and "must be informing" wrongly shifts to a continuous aspect, none of which preserve the original modal perfect meaning of a certain past deduction.
Hence, the answer is The coordinator must have informed the guests about the delay.
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Important Questions from Active and Passive Voice
Select the option that expresses the given sentence in passive voice.
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Select the correct passive form of the given sentence.
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Directions: Select the correct active form of the given sentence.
By whom has this mischief been done?
Select the correct active form of the given sentence.
By whom were you pushed into the mud?
