| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [be] [verb] [prep] a | 1063 |
|
| 2 | could [be] [verb] [prep] a | 971 |
|
| 3 | which could [be] [verb] [prep] | 506 |
|
| 4 | which could [verb] [prep] a | 40 |
|
| 5 | which could [be] [verb] a | 6 |
|
