| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [subord] [pron] could | 11707 |
|
| 2 | [subord] [adv] [pron] | 4990 |
|
| 3 | [adv] [pron] could | 4860 |
|
| 4 | [subord] [adv] could | 13 |
|
