| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [vb past] [pron] [pron] | 695 |
|
| 2 | [vb past] [pron] [pron] could | 351 |
|
| 3 | [adv] [vb past] [pron] could | 162 |
|
| 4 | [adv] [pron] [pron] could | 90 |
|
