| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [modal v] [be] | 43 |
|
| 2 | [be] could [be] | 24 |
|
| 3 | be could [be] | 24 |
|
| 4 | [be] could [be] | 9 |
|
| 5 | be could [be] | 9 |
|
