| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [pron] could | 4860 |
|
| 2 | [to-vb] [adv] [pron] | 1729 |
|
| 3 | [to-vb] [pron] could | 247 |
|
| 4 | [to-vb] [adv] could | 17 |
|
