Select the sentence that correctly structures a passive reporting statement with a perfect infinitive.
Answer and explanation
Correct answer: B. The ancient fortress is believed to have been constructed during the third century.
- Step 1: Passive reporting verbs (is believed, is said) followed by past actions require the perfect passive infinitive: 'to have been + past participle'.
- Step 2: 'To have been constructed' conveys that the construction occurred prior to the present belief.
Answer
The ancient fortress is believed to have been constructed during the third century.
Why not the others: 'to be constructed' indicates present or future action; 'to have constructed' is active voice (the fortress did not construct); 'to be constructing' indicates continuous aspect.
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