| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] could [verb] [pron] | 9098 |
|
| 2 | [Wh adv] [pron] [verb] [pron] | 5185 |
|
| 3 | [Wh adv] [pron] could [verb] | 765 |
|
