| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [vb pp] to be [adj] | 498 |
|
| 2 | could be [vb pp] to [adj] | 176 |
|
| 3 | could be [vb pp] to be | 149 |
|
| 4 | could be [vb pp] be [adj] | 8 |
|
