| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [not/n't] [verb] [pron] | 79273 |
|
| 2 | could [not/n't] [verb] | 21358 |
|
| 3 | could [verb] [pron] | 12219 |
|
| 4 | could [not/n't] [pron] | 886 |
|
