| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [verb] to [det] | 1161 |
|
| 2 | could be [verb] to | 892 |
|
| 3 | could [verb] to [det] | 146 |
|
| 4 | could be [verb] [det] | 103 |
|
