| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [verb] [adv] | 3631 |
|
| 2 | could [vb infin] [adv] | 3625 |
|
| 3 | [vb mod] work [adv] | 484 |
|
| 4 | [modal v] work [adv] | 484 |
|
| 5 | could work [adv] | 107 |
|
| 6 | could work [adv] | 60 |
|
| 7 | could work [adv] | 60 |
|
