| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they could [be] [verb] to | 26 |
|
| 2 | they could be [verb] to | 26 |
|
| 3 | they could [be] [verb] to | 25 |
|
| 4 | they could [be] [vb pp] to | 25 |
|
