| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who have be [vb pp] in | 19 |
|
| 2 | who have been [vb pp] in | 19 |
|
| 3 | who had be [vb pp] in | 12 |
|
| 4 | who have be brought in | 5 |
|
