| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they have been [vb pp] by | 251 |
|
| 2 | they have been [vb pp] by | 114 |
|
| 3 | they had been [vb pp] by | 98 |
|
| 4 | they 've been [vb pp] by | 30 |
|
| 5 | they have been replaced by | 8 |
|
| 6 | they have been joined by | 7 |
|
| 7 | they 'd been [vb pp] by | 6 |
|
| 8 | they have been approved by | 5 |
|
| 9 | they have been told by | 5 |
|
