| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [Wh det] [pers pn] could [vb infin] | 474 |
|
| 2 | [Wh det] [pers pn] could [vb infin] [noun] | 45 |
|
| 3 | [prep] [pers pn] could [vb infin] [noun] | 12 |
|
| 4 | [prep] [Wh det] could [vb infin] [noun] | 7 |
|
