| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] have been [vb pp] to [det] | 16 |
|
| 2 | [modal v] have been [vb pp] to [det] | 16 |
|
| 3 | should have been [vb pp] to [det] | 5 |
|
| 4 | should have been [vb pp] to [det] | 5 |
|
