| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [be] [noun] | 4332 |
|
| 2 | could [adv] [be] | 4064 |
|
| 3 | could [be] [noun] | 542 |
|
| 4 | could [adv] [noun] | 49 |
|
