| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] not have been [prep] [adj] | 18 |
|
| 2 | [modal v] not have been [prep] [adj] | 18 |
|
| 3 | may not have been [prep] [adj] | 6 |
|
| 4 | may not have been [prep] [adj] | 6 |
|
| 5 | not have been [verb] [prep] [adj] | 70 |
|
| 6 | not have been [vb pp] [prep] [adj] | 69 |
|
| 7 | not have been [adj] [prep] [adj] | 20 |
|
| 8 | not have been [adj] [prep] [adj] | 20 |
|
| 9 | not have been possible [prep] [adj] | 8 |
|
| 10 | not have been possible [prep] [adj] | 8 |
|
| 11 | not have been [prep] [adj] [noun] | 8 |
|
| 12 | not have been [prep] [adj] [noun sg] | 6 |
|
