| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could not [verb] [prep] | 2119 |
|
| 2 | [adv] could not [verb] | 958 |
|
| 3 | [adv] not [verb] [prep] | 831 |
|
| 4 | [adv] could [verb] [prep] | 85 |
|
