| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] [pron] [adv] | 17821 |
|
| 2 | [pron] could [adv] | 9407 |
|
| 3 | [vb base] [pron] could | 1838 |
|
| 4 | [vb base] could [adv] | 20 |
|
