| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] they [vb infin] [pron] | 1212 |
|
| 2 | they could [vb infin] [pron] | 657 |
|
| 3 | [verb] they could [vb infin] | 367 |
|
| 4 | [verb] could [vb infin] [pron] | 55 |
|
