Use a passive reporting verb when the source is not important, not known, or "people in general." It is common in news reports and formal writing. Common verbs: believe, consider, estimate, expect, know, report, rumor, say, think, and hope (usually It is hoped that…).
| Pattern | Example |
|---|
| It + is said / thought… + that + clause | It is expected that the new stadium will open in May. |
| subject + is said / thought… + to… | The new stadium is expected to open in May. |
| There + is / are said / thought… + to be… | There are thought to be fewer than 100 of these birds left in the wild. |
The time after to
| Form | Time | Example |
|---|
| to + verb | now or always (after expect: the future) | She is said to speak six languages. |
| to be + -ing | in progress now | Police are reported to be looking for two men. |
| to have + past participle | earlier, or up to now | The band is said to have recorded its first album in a garage. |
| to have been + past participle | earlier, and passive | The letter is thought to have been written in prison. |
Notes
For a report in the past, put the reporting verb in the past: It was thought that the house was empty. = The house was thought to be empty. · For the negative, put not before to: He is believed not to have known. · Don't mix the two patterns: not He is said that he… and not It is said him to…
In conversation, people usually say Apparently,…, They say (that)… or I heard that… The passive forms are more common in the news and in formal writing.