| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [vb pp] to have been [prep] | 24 |
|
| 2 | is [vb pp] to have be [prep] | 24 |
|
| 3 | [is] [vb pp] to have be in | 8 |
|
| 4 | [is] believed to have be [prep] | 7 |
|
| 5 | [is] said to have be [prep] | 7 |
|
| 6 | [is] known to have be [prep] | 5 |
|
| 7 | [is] [vb pp] to have be on | 5 |
|
