| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could not have [verb] a | 44 |
|
| 2 | could not have [verb] for | 12 |
|
| 3 | could not [verb] for a | 9 |
|
| 4 | not have [verb] for a | 9 |
|
| 5 | could have [verb] for a | 8 |
|
