| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh adv] [pron] [vb mod] [verb] [pers pn] | 596 |
|
| 2 | [Wh adv] [pron] [modal v] [verb] [pers pn] | 596 |
|
| 3 | [adv] [pron] could [verb] [pers pn] | 506 |
|
| 4 | [Wh adv] [pron] could [verb] [pron] | 165 |
|
| 5 | [Wh adv] [pron] could [verb] [pers pn] | 102 |
|
