| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [indef pn] [pron] could [vb infin] | 761 |
|
| 2 | [indef pn] who [modal v] [vb infin] | 725 |
|
| 3 | [pron] who could [vb infin] | 151 |
|
| 4 | [indef pn] who could [verb] | 135 |
|
