| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [vb pp] to [art] [adj] | 1668 |
|
| 2 | could be [vb pp] to [art] | 280 |
|
| 3 | could be [vb pp] to [adj] | 78 |
|
| 4 | could be [vb pp] [art] [adj] | 53 |
|
