| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [adv] [verb] | 149796 |
|
| 2 | could [adv] [verb] | 11478 |
|
| 3 | could [pron] [verb] | 3924 |
|
| 4 | could [pron] [adv] | 734 |
|
