| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [Wh det] [pron] could [vb infin] | 501 |
|
| 2 | [noun] [prep] [Wh det] [pron] could | 494 |
|
| 3 | [noun] [Wh det] [pron] could [vb infin] | 176 |
|
| 4 | [noun] [prep] [pron] could [vb infin] | 117 |
|
| 5 | [noun] [prep] [Wh det] could [vb infin] | 44 |
|
