| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they could be [vb pp] to [be] | 7 |
|
| 2 | they could [be] [vb pp] to be | 7 |
|
| 3 | they could [be] [vb pp] to be | 7 |
|
| 4 | they could [be] [vb pp] to [be] | 7 |
|
