| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be could be | 24 |
|
| 2 | be could [be] | 24 |
|
| 3 | be could be | 24 |
|
| 4 | be could [be] | 9 |
|
| 5 | is could [be] | 7 |
|
| 6 | 's could [be] | 7 |
|
