| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] [det] [modal v] have been [verb] | 8 |
|
| 2 | [vb base] [det] [modal v] have been [vb pp] | 8 |
|
| 3 | [vb base] [det] [vb mod] have been [verb] | 8 |
|
| 4 | [vb base] that [modal v] have been [verb] | 5 |
|
