| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [pers pn] could [vb infin] a [noun sg] | 18 |
|
| 2 | which [pron] could [vb infin] a [noun sg] | 18 |
|
| 3 | [Wh det] he could [vb infin] a [noun sg] | 5 |
|
| 4 | [Wh det] he could [vb infin] a [noun sg] | 5 |
|
