| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] could [vb infin] [adv] | 4617 |
|
| 2 | what [pron] could [vb infin] | 443 |
|
| 3 | what [pron] could [adv] | 124 |
|
| 4 | what could [vb infin] [adv] | 11 |
|
