| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [not/n't] be [verb] to be | 18 |
|
| 2 | could [not/n't] be [vb pp] to be | 18 |
|
| 3 | could not be [verb] to be | 14 |
|
| 4 | could [not/n't] be said to be | 5 |
|
| 5 | could [not/n't] be say to be | 5 |
|
