| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [det] [prep] [Wh det] [pron] [modal v] | 75 |
|
| 2 | [adj] [prep] [Wh det] [pron] could | 25 |
|
| 3 | [det] [prep] [pron] [pron] could | 23 |
|
| 4 | [det] [prep] [Wh det] [pron] could | 7 |
|
