| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] could [adv] [verb] [art] | 2893 |
|
| 2 | [pers pn] could [adv] [verb] [art] | 2686 |
|
| 3 | we [modal v] [adv] [verb] [art] | 1959 |
|
| 4 | we could [adv] [verb] [art] | 222 |
|
