| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [pers pn] could [adv] come | 9 |
|
| 2 | [verb] [pron] could [not/n't] come | 6 |
|
| 3 | [verb] [pron] could not come | 6 |
|
| 4 | [verb] [pron] could n't come | 5 |
|
