| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they must be [vb pp] as [adj] | 9 |
|
| 2 | they can be [vb pp] as [adj] | 8 |
|
| 3 | they may be [vb pp] as [adj] | 8 |
|
| 4 | they [vb mod] be seen as [adj] | 5 |
|
