| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] [adv] [be] [verb] [conj] | 48 |
|
| 2 | [modal v] no [adv] [be] [verb] [conj] | 28 |
|
| 3 | could no [adv] [be] [verb] [conj] | 9 |
|
