| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] not have done | 320 |
|
| 2 | [vb mod] n't have done | 193 |
|
| 3 | [vb mod] not have done | 136 |
|
| 4 | would not have done | 100 |
|
| 5 | could not have done | 90 |
|
| 6 | should not have done | 70 |
|
| 7 | might not have done | 17 |
|
| 8 | ca not have done | 15 |
|
| 9 | can not have done | 8 |
|
| 10 | ought not have done | 7 |
|
| 11 | may not have done | 7 |
|
| 12 | [vb mod] not to have done | 7 |
|
| 13 | need not have done | 6 |
|
