| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [verb] [pers pn] [prep] [art] | 3873 |
|
| 2 | could [verb] [pron] [prep] [art] | 618 |
|
| 3 | could [verb] [pers pn] [prep] [art] | 439 |
|
| 4 | could [verb] [pers pn] [prep] [art] | 439 |
|
