| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh adv] could [pers pn] [adv] [verb] | 155 |
|
| 2 | [Wh adv] [modal v] [pers pn] ever [verb] | 98 |
|
| 3 | [adv] could [pers pn] ever [verb] | 40 |
|
| 4 | [Wh adv] could [pron] ever [verb] | 39 |
|
