| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who have been [vb pp] [verb] [adv] | 7 |
|
| 2 | who have be [vb pp] [verb] [adv] | 7 |
|
| 3 | who have be [vb pp] [to-vb] [adv] | 5 |
|
