| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [be] [verb] [be] [that] | 54 |
|
| 2 | could [be] [verb] [be] [that] | 5 |
|
| 3 | could [be] [verb] [be] [conj] | 5 |
|
