| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] [be] [verb] | 4880 |
|
| 2 | could [adv] [verb] [adj] | 2531 |
|
| 3 | [adv] [be] [verb] [adj] | 2226 |
|
| 4 | could [adv] [be] [adj] | 883 |
|
| 5 | could [be] [verb] [adj] | 423 |
|
