| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] could [adv] [be] | 290 |
|
| 2 | could [adv] [be] [noun] | 105 |
|
| 3 | [conj] [adv] [be] [noun] | 19 |
|
| 4 | [conj] could [be] [noun] | 13 |
|
