| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when [pers pn] [vb mod] have been [prep] | 8 |
|
| 2 | when [pers pn] [modal v] have been [prep] | 8 |
|
| 3 | when [pers pn] should have been [prep] | 5 |
|
| 4 | when [pers pn] should have been [prep] | 5 |
|
