| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [Wh det] [ex0] could | 11 |
|
| 2 | [prep] [Wh det] [ex0] could | 11 |
|
| 3 | [Wh det] [ex0] could be | 8 |
|
| 4 | [Wh det] [ex0] could [be] | 8 |
|
| 5 | [Wh det] [ex0] could be | 8 |
|
| 6 | [Wh det] [ex0] could [be] | 8 |
|
