| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] n't have seen | 26 |
|
| 2 | [modal v] n't have seen | 26 |
|
| 3 | would n't have seen | 13 |
|
| 4 | would n't have seen | 13 |
|
| 5 | could n't have seen | 5 |
|
| 6 | could n't have seen | 5 |
|
| 7 | n't have seen [pron] | 12 |
|
| 8 | n't have seen [pers pn] | 9 |
|
