| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [be] [verb] [prep] a | 1298 |
|
| 2 | could [be] [verb] [prep] a | 971 |
|
| 3 | [Wh det] could [be] [verb] [prep] | 593 |
|
| 4 | [Wh det] could [verb] [prep] a | 42 |
|
| 5 | [Wh det] could [be] [verb] a | 14 |
|
