| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] not have been [prep] [adj] | 18 |
|
| 2 | [vb mod] not have been [prep] [adj] | 18 |
|
| 3 | [modal v] not have been [prep] [adj] | 9 |
|
| 4 | [modal v] not have been [prep] [det] | 8 |
|
| 5 | [modal v] not have been in [adj] | 7 |
|
| 6 | may not have been [prep] [adj] | 6 |
|
| 7 | may not have been [prep] [adj] | 6 |
|
