| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could be [verb] | 15990 |
|
| 2 | [modal v] be say | 1729 |
|
| 3 | [vb mod] be say | 1729 |
|
| 4 | could be say | 362 |
|
| 5 | could [be] say | 362 |
|
