| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could be [verb] to be | 152 |
|
| 2 | [not/n't] be [verb] to be | 125 |
|
| 3 | could [not/n't] be [verb] to | 90 |
|
| 4 | could [not/n't] [verb] to be | 80 |
|
