| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] could [pron] | 2077 |
|
| 2 | [not/n't] [vb mod] [pron] | 69 |
|
| 3 | [not/n't] [modal v] [pron] | 69 |
|
| 4 | [not/n't] could [pron] | 6 |
|
