| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [verb] [prep] be a | 1866 |
|
| 2 | could be [verb] [prep] a | 971 |
|
| 3 | could be [verb] [prep] be | 152 |
|
| 4 | could [verb] [prep] be a | 23 |
|
