| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | how they [modal v] be [vb pp] | 132 |
|
| 2 | how [pron] could be [vb pp] | 59 |
|
| 3 | [adv] they could be [vb pp] | 52 |
|
| 4 | [Wh adv] they could be [vb pp] | 30 |
|
| 5 | how they could [be] [vb pp] | 19 |
|
| 6 | how they could be [vb pp] | 19 |
|
| 7 | how they could be [verb] | 19 |
|
