| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [Wh det] [pers pn] could [vb infin] [noun sg] | 19 |
|
| 2 | [prep] which [pers pn] could [vb infin] [noun sg] | 18 |
|
| 3 | [prep] [Wh det] he could [vb infin] [noun sg] | 8 |
|
| 4 | [prep] [Wh det] they could [vb infin] [noun sg] | 6 |
|
