| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] be could be | 7 |
|
| 2 | [vb mod] be could be | 7 |
|
| 3 | could be could be | 5 |
|
| 4 | could be could be | 5 |
|
| 5 | be [verb] could be | 11 |
|
| 6 | be [vb pp] could be | 11 |
|
| 7 | be [pron] could be | 6 |
|
| 8 | be [pers pn] could be | 6 |
|
| 9 | be it could be | 5 |
|
| 10 | be it could be | 5 |
|
