| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [adv] [det] [pron] | 265 |
|
| 2 | [vb past] [adv] [pron] could | 206 |
|
| 3 | [adv] [det] [pron] could | 113 |
|
| 4 | [vb past] [det] [pron] could | 53 |
|
