| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] [vb infin] [pron] were | 16 |
|
| 2 | could [adv] [vb infin] [pers pn] were | 13 |
|
| 3 | could [adv] [vb infin] they were | 6 |
|
| 4 | could [adv] [vb infin] they were | 6 |
|
