| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] could [verb] [prep] [art] | 1837 |
|
| 2 | [indef pn] [modal v] [verb] [prep] [art] | 481 |
|
| 3 | [indef pn] could [verb] [prep] [art] | 61 |
|
