| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could be [vb pp] at [art] | 76 |
|
| 2 | could be [vb pp] at the | 45 |
|
| 3 | could be [vb pp] at a | 24 |
|
| 4 | could be seen at [art] | 6 |
|
