| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [pron] could | 2700 |
|
| 2 | [vb past] there [modal v] | 338 |
|
| 3 | [vb past] there [vb mod] | 338 |
|
| 4 | [verb] there could | 77 |
|
| 5 | [vb past] there could | 26 |
|
| 6 | [vb past] there could | 26 |
|
| 7 | [vb past] [ex0] could | 26 |
|
