It was reported that there was a significant delay ... / There was reported to have been a significant delay ...

It was reported that there had been severe flooding in the area. / There was reported to have been severe flooding in the area.

It is expected that there will be a rise in fuel prices next month. / There is expected to be a rise in fuel prices next month.

There is expected to be fewer participants in the event next month.

It is believed that the vaccine will be effective against the new variant. / The vaccine is believed to be effective against the new variant.

It was claimed that the actor had been involved in a scandal. / The actor was claimed to have been involved in a scandal.

It was reported that there was an explosion in the factory. / There was reported to have been an explosion in the factory.

It was said that the company had gone bankrupt. / The company was said to have gone bankrupt.

It is known that this treatment has helped thousands of patients. / This treatment is known to have helped thousands of patients.

It is claimed that the politician made a controversial statement during the debate. / The politician is claimed to have made a controversial statement ...

It was known that this medication was not widely available until recently.

It is said that the Earth is getting warmer every year. / The Earth is said to be getting warmer every year.

It is suggested that the company is planning a major expansion. / The company is suggested to be planning a major expansion.