| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] [modal v] n't [verb] | 43444 |
|
| 2 | [pers pn] could [adv] [verb] | 19954 |
|
| 3 | [pers pn] could [not/n't] [verb] | 13779 |
|
| 4 | [pers pn] could not [verb] | 13772 |
|
| 5 | [pron] could n't [verb] | 9355 |
|
