| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [verb] [pron] | 215665 |
|
| 2 | could [adv] [verb] | 32838 |
|
| 3 | could [verb] [pron] | 12219 |
|
| 4 | could [adv] [pron] | 919 |
|
