| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could not [adv] [verb] | 1461 |
|
| 2 | not [adv] [verb] to | 1454 |
|
| 3 | could [adv] [verb] to | 714 |
|
| 4 | could not [verb] to | 356 |
|
