| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] n't have had a | 16 |
|
| 2 | would n't have had a | 8 |
|
| 3 | would n't have had a | 8 |
|
| 4 | could n't have had a | 6 |
|
| 5 | could n't have had a | 6 |
|
