| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [verb] at [adj] | 1691 |
|
| 2 | could [be] [verb] [adj] | 422 |
|
| 3 | could [be] [verb] at | 263 |
|
| 4 | could [verb] at [adj] | 124 |
|
| 5 | could [be] at [adj] | 10 |
|
