| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to have been [vb pp] [prep] | 1532 |
|
| 2 | been [vb pp] [prep] this | 697 |
|
| 3 | to have [vb pp] [prep] this | 33 |
|
| 4 | to have been [vb pp] this | 7 |
|
