'Is believed to' usage

4

1

I was studying a book 'Grammar In Use'. But there is a sentence I don't understand.

'A number of paintings is believed to have been destroyed'

Why 'to' has to be used in this sentence? Also, are these wrong sentences if I say,

  1. A number of paintings have been believed being destroyed.

  2. A number of paintings is believed destroyed.

Yunah

Posted 2016-10-05T05:51:03.200

Reputation: 41

1

related: “is said to” causes ambiguity

– Mari-Lou A – 2016-10-05T07:09:32.813

2

Many people believe that (it's common belief) somebody/something (we don't know who/what or it's not important) destroyed the painting. See passive perfect infinitives

– Yuri – 2016-10-05T07:51:11.607

Answers

1

Consider "is believed to" as a modifying clause.

A number of paintings is believed to have been destroyed.
A number of paintings have been destroyed.

The destruction has actually happened.

A number of paintings is believed to have been destroyed.

Here it is second-hand information which may or may not be true.
I don't think you need to rewrite any further.

user3169

Posted 2016-10-05T05:51:03.200

Reputation: 29 679

3

correct, but it should be "are believed to". "a number of paintings" conjugates as plural http://data.grammarbook.com/blog/numbers/the-number-vs-a-number/

– Some_Guy – 2017-01-03T13:07:31.197