| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [be] [verb] [prep] [adj] | 656 |
|
| 2 | [be] [verb] [prep] [be] [adj] | 463 |
|
| 3 | could [be] [verb] [prep] [be] | 152 |
|
| 4 | could [verb] [prep] [be] [adj] | 29 |
|
