| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [verb] [verb] | 46255 |
|
| 2 | [conj] could [verb] | 2363 |
|
| 3 | [verb] could [verb] | 339 |
|
| 4 | [conj] [verb] could | 62 |
|
