| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [verb] to be | 12877 |
|
| 2 | could [adv] [verb] to | 714 |
|
| 3 | could [verb] to be | 150 |
|
| 4 | could [adv] [verb] be | 7 |
|
