| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [vb past] they | 10138 |
|
| 2 | [pron] they could | 589 |
|
| 3 | [vb past] they could | 330 |
|
| 4 | [pron] [vb past] could | 123 |
|
