| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could not [verb] [pron] [prep] [art] | 157 |
|
| 2 | [modal v] not [verb] [pn reflx] [prep] [art] | 77 |
|
| 3 | could [adv] [verb] [pn reflx] [prep] [art] | 43 |
|
