| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] could | 5341 |
|
| 2 | [Wh adv] could | 2131 |
|
| 3 | where [vb mod] | 907 |
|
| 4 | where [modal v] | 907 |
|
| 5 | where could | 60 |
|
| 6 | where could | 60 |
|
