| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [verb] to be | 184 |
|
| 2 | [vb base] been [vb pp] to be | 182 |
|
| 3 | [vb base] been show to be | 62 |
|
| 4 | [vb base] been shown to be | 62 |
|
| 5 | [vb base] been found to be | 47 |
|
| 6 | [vb base] been find to be | 47 |
|
| 7 | [vb base] been held to be | 10 |
|
| 8 | [vb base] been hold to be | 10 |
|
| 9 | [vb base] been report to be | 7 |
|
| 10 | [vb base] been reported to be | 7 |
|
| 11 | [vb base] been prove to be | 7 |
|
| 12 | [vb base] been [v-ing] to be | 5 |
|
| 13 | [vb base] been proved to be | 5 |
|
