| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [verb] [pron] could [verb] | 567 |
|
| 2 | [adv] [vb base] [pron] [vb mod] [verb] | 463 |
|
| 3 | [adv] [vb base] [pron] [modal v] [verb] | 463 |
|
| 4 | [adv] [vb base] [pron] could [verb] | 81 |
|
