| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [verb] [pron] | 12219 |
|
| 2 | [indef pn] [verb] [pron] | 7443 |
|
| 3 | [indef pn] could [verb] | 2038 |
|
| 4 | [indef pn] could [pron] | 8 |
|
