| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it could [adv] be [vb pp] to | 18 |
|
| 2 | it could [adv] be [vb pp] to | 12 |
|
| 3 | it could not be [vb pp] to | 6 |
|
| 4 | it could [not/n't] be [vb pp] to | 6 |
|
