| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] could be [vb pp] [adj] [prep] | 7 |
|
| 2 | [adj] could be [vb pp] [adj] [prep] | 7 |
|
| 3 | [det] could be [vb pp] [adj] [prep] | 5 |
|
