| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [subord] [pron] could [verb] | 6827 |
|
| 2 | [subord] [pron] [verb] [noun prp] | 4221 |
|
| 3 | [pron] could [verb] [noun prp] | 748 |
|
