| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could be [verb] [prep] | 7289 |
|
| 2 | [modal v] be [verb] for | 5697 |
|
| 3 | could be [verb] for | 671 |
|
| 4 | could [be] [verb] for | 671 |
|
| 5 | could [be] [verb] for | 670 |
|
