| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [be] [verb] [prep] a | 971 |
|
| 2 | what [be] [verb] [prep] a | 230 |
|
| 3 | what could [be] [verb] [prep] | 85 |
|
| 4 | what could [be] [verb] a | 8 |
|
