| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | she could not have | 139 |
|
| 2 | she could [not/n't] have | 139 |
|
| 3 | she could [adv] have | 85 |
|
| 4 | she could n't have | 78 |
|
| 5 | she could not have | 61 |
|
| 6 | she could never have | 19 |
|
| 7 | she could never have | 19 |
|
| 8 | she could easily have | 14 |
|
| 9 | she could easily have | 14 |
|
| 10 | she could ever have | 13 |
|
| 11 | she could ever have | 13 |
|
| 12 | she could hardly have | 9 |
|
| 13 | she could hardly have | 9 |
|
| 14 | she could probably have | 5 |
|
| 15 | she could probably have | 5 |
|
