| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] they could [verb] | 182 |
|
| 2 | [vb past] [pron] could get | 65 |
|
| 3 | [vb past] they [modal v] get | 49 |
|
| 4 | [verb] they could get | 25 |
|
