| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [be] [verb] to be | 152 |
|
| 2 | [be] [verb] to be a | 136 |
|
| 3 | could [be] [verb] to a | 84 |
|
| 4 | could [verb] to be a | 25 |
|
