| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [conj] [adv] | 1362 |
|
| 2 | [vb mod] [conj] [adv] | 1362 |
|
| 3 | could [conj] [adv] | 39 |
|
| 4 | could [conj] [adv] | 39 |
|
