| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | if they could be [vb pp] | 32 |
|
| 2 | before they could be [vb pp] | 18 |
|
| 3 | so they could be [vb pp] | 16 |
|
| 4 | [subord] they could be used | 10 |
|
| 5 | whether they could be [vb pp] | 8 |
|
| 6 | where they could be [vb pp] | 7 |
|
| 7 | when they could be [vb pp] | 7 |
|
| 8 | as they could be [vb pp] | 6 |
|
