| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [modal v] not have been | 569 |
|
| 2 | [pron] [modal v] have been [noun] | 381 |
|
| 3 | [pron] [modal v] not have [noun] | 78 |
|
| 4 | [modal v] not have been [noun] | 27 |
|
