| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who could [vb infin] | 1251 |
|
| 2 | [verb] could [vb infin] | 339 |
|
| 3 | [verb] who could | 49 |
|
| 4 | [verb] who [vb infin] | 9 |
|
