| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [verb] [pron] | 25783 |
|
| 2 | could [verb] [pron] | 12219 |
|
| 3 | [Wh det] could [verb] | 1704 |
|
| 4 | [Wh det] could [pron] | 298 |
|
